Solving Two- Step Equations

Feb 21, 2013

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Notes: Solving Two Step EquationsStep 1: Use inverse operations for any addition or subtraction terms in the equation.Step 2: Use inverse operations for any multiplication or division terms in the equation.Step 3: Solve for the variable.. Distributive Property. Definition: the sum of two addends

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Solving Two- Step Equations

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Solving Two Step Equations

Solving Two Step Equations. Calandra Bean-Presenter July 4, 2005. Click here to continue. WELCOME!. Math is used in everyday life activities consciously and unconsciously.

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Solving Two-Step Equations

Solving Two-Step Equations. Section 2-2. Goals. Goal. Rubric. Level 1 – Know the goals. Level 2 – Fully understand the goals. Level 3 – Use the goals to solve simple problems. Level 4 – Use the goals to solve more advanced problems .

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Solving Two-Step Equations

Solving Two-Step Equations. A two-step equation involves two operations. . To solve a two step equation, we need to use the properties of equality and inverse operations to form a series of simpler equivalent equations. You can use the properties of equality repeatedly to isolate the variable. .

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Solving Two-Step Equations

Solving Two-Step Equations. What is a Two-Step Equation?. An equation written in the form Ax + B = C. Examples of Two-Step Equations. 3x – 5 = 16 y/4 + 3 = 12 5n + 4 = 6 n/2 – 6 = 4. Steps for Solving Two-Step Equations. PEMDAS in Reverse….

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Solving Two Step Equations

Solving Two Step Equations. 7.1. What is being done to the variable?. 2x +1 =5 X is being multiplied by 2 and added to 1. What is being done to the variable?. Y is being divided by -7 and added by -9. Goal:.

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Solving Two-Step Equations

Solving Two-Step Equations. Lesson 2-2. A. Solve 2x + 3 = 15. Undo the addition by subtracting 3 from each side. 2x + 3 – 3 = 15 – 3 . 2x = 12. Simplify. Undo the multiplication by dividing each side by 2. x = 6. Simplify.

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Solving two step equations

Solving two step equations. What is a Two-Step Equation?. An equation written in the form Ax + B = C. Steps for Solving Two-Step Equations. Solve for any Addition or Subtraction on the variable side of equation by “undoing” the operation from both sides of the equation .

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Solving Two-Step Equations

Solving Two-Step Equations. Week 1 Day 2 January 7 th , 2014. Warm-up. Tell me three things that you remember learning last semester. . Essential Question: . How do we solve for a variable? . Standard: . A.REI.3 Solving liner equations in one variable. . What is a Two-Step Equation?.

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Solving two step equations

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Solving Two-Step Equations

Solving Two-Step Equations. #34. Example 1. Solve each equation. 18 + 3 x = 30. Helpful Hint. Undo operations in the reverse of the Order of Operations. First undo addition or subtraction. Then undo multiplication or division. FYI. Example 2. Solve. Check the answer. x 3. – 2 = 1.

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Solving Two-Step Equations

Solving Two-Step Equations. Erin I. Skov October 2010. How do you solve this equation?. 1 . What do you do first? What do you do second? Add__ to both sides of the equation Subtract __ from both sides of the equation Multiply both sides of the equation by ___

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Solving Two-Step Equations

Solving Two-Step Equations. Step 1. Multiply out any brackets: 2(x + 3) = 20 2x + 6 = 20. Step 2. Add or subtract to get rid of the constant: 2x + 6 = 20 2x + 6 – 6 = 20 – 6 2x = 14. Step 3. Multiply or divide to isolate the variable: 2x = 14 2x = 14 2 2 x = 7.

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Solving Two Step Equations

Solving Two Step Equations. Golf : It costs $12 to attend a golf clinic with a local pro. Buckets of balls for practicing during the clinic cost $3 each. How many buckets can you buy at the clinic if you have $30 to spend?.

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Solving Two-Step Equations

Solving Two-Step Equations. Algebra Tiles. Variable Zero Pairs. Zero Pairs. Example 1. Check our work. -5 = 2x + 1 -5 = 2(-3) + 1 -5 = -6 + 1 -5 = -5. Example 2. Let’s check our work: 3x – 2 = 4 3(2) – 2 = 4 6 – 2 = 4 4 = 4. Example 3.

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Solving Two-Step Equations

Solving Two-Step Equations. Teacher: Jimmy Frost. What is a Two-Step Equation?. An equation written in the form Ax + B = C. Examples of Two-Step Equations. 3x – 5 = 16 y/4 + 3 = 12 5n + 4 = 6 n/2 – 6 = 4. Steps for Solving Two-Step Equations.

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Solving Two-Step Equations

Solving Two-Step Equations. 7 th Grade 2012-2013. Standard – 7.EE.3. I can use expressions and equations to solve multi-step, real-life problems using positive and negative rational numbers. What is a Two-Step Equation?. Put in your own words

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Solving Two-Step Equations

Solving Two-Step Equations. 3.2 1-41 odd, 46-51. Section 3.2. From yesterday (review). Addition Property Adding the same number to each side of an equation produces an equivalent equation If x-a=b, then x-a+a=b+a, or x=b+a. Subtraction Property

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SOLVING TWO-STEP EQUATIONS

SOLVING TWO-STEP EQUATIONS. 7-1. USING PROPERTIES TO SOLVE TWO-STEP EQUATIONS. Solving two-step equations requires us to use the reverse of the order of operations: First , you must undo all addition and subtraction . Then , undo all multiplication and division. Example….

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Solving Two-Step Equations

Solving Two-Step Equations. You will solve equations by undoing operations using properties of equality. Essential Question: How do you solve two-step equations? TP: Construct and solve two step equations for real world problems by combining like terms. Steps for Solving Two-Step Equations

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Solving Two-Step Equations

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Solving Two-Step Equations

Solve each equation. 1. 4 b = 24 2. –4 d = 20 3. –3 c = –27 4. = –16 5. 8 p = 48 6. = –3 7. = 8 8. = –7 9. = –10. k 4. h 6. t –3. x –5. y –6. Solving Two-Step Equations. COURSE 2 LESSON 2-6. (For help, go to Lesson 2-4.). 2-6.

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Solving Two Step Equations

Algebra. Solving Two Step Equations. 3a + 5 = 11. -3n + 16 = - 2. Students will solve two-step equations using inverse operations. -2x – 8 = 16. 2y + ( - 3 ) = - 15. Review One-step Equations. m + 9 = 3. f – 3 = -5. - 9 - 9. + 3 + 3. m = -6. f = -2. check: -2 – 3 = ?.

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