Solve for x
x=31
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4x+x+15=170
Combine x and x\times 3 to get 4x.
5x+15=170
Combine 4x and x to get 5x.
5x=170-15
Subtract 15 from both sides.
5x=155
Subtract 15 from 170 to get 155.
x=\frac{155}{5}
Divide both sides by 5.
x=31
Divide 155 by 5 to get 31.
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