Solve for x
x=30
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3x+80=170
Swap sides so that all variable terms are on the left hand side.
3x=170-80
Subtract 80 from both sides.
3x=90
Subtract 80 from 170 to get 90.
x=\frac{90}{3}
Divide both sides by 3.
x=30
Divide 90 by 3 to get 30.
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