Solve for x
x=9
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30-2x=x+3
Add 18 and 12 to get 30.
30-2x-x=3
Subtract x from both sides.
30-3x=3
Combine -2x and -x to get -3x.
-3x=3-30
Subtract 30 from both sides.
-3x=-27
Subtract 30 from 3 to get -27.
x=\frac{-27}{-3}
Divide both sides by -3.
x=9
Divide -27 by -3 to get 9.
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