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Solve Equations: Using Division
and Multiplication
Think About This:
For any numbers a,b, and c, if a=b, and c≠0,then
a_
b_
=
c
c
Solve the following equations by Division.
1. 4x = 20
­divide both sides by 4
2. ­3x = ­15
­divide both sides by ­3
1
Now Think About This:
For any numbers a, b, and c, if a=b, then
ac=bc.
Solve each of the following equations by Multiplication.
_x
=7
1.
2
2.
_x = ­1.5
5
­multiply both sides by 2
­multiply both sides by 5
2
3
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