Solve for x
x=34
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4x=170-x
Add 90 and 80 to get 170.
4x+x=170
Add x to both sides.
5x=170
Combine 4x and x to get 5x.
x=\frac{170}{5}
Divide both sides by 5.
x=34
Divide 170 by 5 to get 34.
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