Solving Multiplication and Division Equations Lesson 2-7.

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Presentation transcript:

Solving Multiplication and Division Equations Lesson 2-7

Procedure Isolate the variable by performing the inverse operation on the number that is attached to the variable. The inverse of multiplication is division. The inverse of division is multiplication. Use the “Golden Rule.” Perform the same operation on the other side of the equal sign.

Example m ÷ 3 = 10 The inverse of division is multiplication. x 3 Repeat the operation on the other side. x 3 m= 30

Check. Use the original equation. m ÷ 3 = ÷ 3 = = 10

Example 2 7b = 105 The inverse of multiplying is dividing. ÷ 7 b =

Check 7b = 105 7(15) = = 105

Homework Time