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Happy Monday…Quick Check …AKA QUIZ!!!!. Use Distributive Prop and Simplify (4+3)3 2(x+3) -2(x+3) 3x +2y+4y x + 3(x+4y) 9+ 2a+3b- 5a Solve for the variable 7. y+7=21 8. m+10=-2 9. k-6=13 10. 19= g-5. YOU CAN DO THIS!!!
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Happy Monday…Quick Check …AKA QUIZ!!!! Use Distributive Prop and Simplify (4+3)3 2(x+3) -2(x+3) 3x +2y+4y x+ 3(x+4y) 9+ 2a+3b- 5a Solve for the variable 7. y+7=21 8. m+10=-2 9. k-6=13 10. 19= g-5 YOU CAN DO THIS!!! TAKE YOUR TIME, READ THE DIRECTIONS, AND SHOW YOUR WORK!! GOOD LUCK!!! THIS ONE IS GRADED
Solving Equations By Multiplying or Dividing Monday, November 2, 2009
Division Property of Equality • Words…… • Symbols • When you divide each side of an equation by the same nonzero number, the two sides remain equal. • For any number a, b, c, where c 0, then a/c = b/c
Check it Out!!! • Example: • 3x= -12 • 3x= -12 • 3x = -12 • 3 3 • X= -4 Divide the right side, by the same (3), to balance. Divide the left side of the equation by 3 to undo the multiplication 3 x
Multiplication Property of equality • Words • Symbols • When you multiply each side of an equations by the same number, the two sides remain equal. • For any number a, b, and c, if a = b, then ac=bc.
Check it out!! • Example X = 7 6 • X = 7 • 6 • (X) 6= (7)6 • (6) • X=42
Solve • Y = -9 • -4 • Y = -9 (-4) • -4(-4) • Y= -9(-4) • Same sign=positive • Y= 36
Do Work!!! • In ya’ll textbooks .. • Page 117 • We are doing #1-10 as a family …. • Page 118 • #11-38 • Ya’ll are on your OWN!!!! HAHAHA How cute!!