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Evaluating Expressions Using Order of Operations

Learn how to evaluate algebraic expressions by substituting values and following the order of operations. Includes examples and practice problems.

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Evaluating Expressions Using Order of Operations

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  1. Bell Ringer T = Can I Evaluate the Expression Using Order of Operations? Evaluate the algebraic expression: 2x – 8 when x = 4 Write the expression.2x – 8 Substitute 4 for x.2(4) – 8 Multiply.8 – 8 Subtract.0

  2. Example 1 Evaluate the algebraic expression. Write the expression. Substitute –2 for m and 10 for y. Add inside parentheses. Multiply. Divide the numerator by the denominator.

  3. Example 2 State whether the equation is true or false for the values of the variables given. when x = 8 and y = 17. Substitute x = 8 and y = 17. Multiply. Add. ? ? FALSE!

  4. Exit Problems Find the value of each expression. • 9 + 7(2 + 1) 2. 30 4

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