Solve for x
x=69
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2x+18=156
Combine x and x to get 2x.
2x=156-18
Subtract 18 from both sides.
2x=138
Subtract 18 from 156 to get 138.
x=\frac{138}{2}
Divide both sides by 2.
x=69
Divide 138 by 2 to get 69.
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