Solve for x
x=35
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5x-85=90
Combine x and 4x to get 5x.
5x=90+85
Add 85 to both sides.
5x=175
Add 90 and 85 to get 175.
x=\frac{175}{5}
Divide both sides by 5.
x=35
Divide 175 by 5 to get 35.
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