Solve for x
x=90
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2x+30=210
Combine x and x to get 2x.
2x=210-30
Subtract 30 from both sides.
2x=180
Subtract 30 from 210 to get 180.
x=\frac{180}{2}
Divide both sides by 2.
x=90
Divide 180 by 2 to get 90.
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