Solve for x
x=70
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2x+40=180
Combine x and x to get 2x.
2x=180-40
Subtract 40 from both sides.
2x=140
Subtract 40 from 180 to get 140.
x=\frac{140}{2}
Divide both sides by 2.
x=70
Divide 140 by 2 to get 70.
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