solving multiplication and division equations power point
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Solving Multiplication and Division Equations
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
The inverse of division is multiplication.
Repeat the operation on the other side.
·3
103
m
103
m
30m
·3
Check. Use the original equation.
30
103
m
103
30 30
Example 2The inverse of multiplying is dividing.
105
7105
b
7105 b
105
105
7b
Check
7105 b
7 = 7
105
77105
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