Solve for x
x=7
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18+x-4x=-3
Subtract 4x from both sides.
18-3x=-3
Combine x and -4x to get -3x.
-3x=-3-18
Subtract 18 from both sides.
-3x=-21
Subtract 18 from -3 to get -21.
x=\frac{-21}{-3}
Divide both sides by -3.
x=7
Divide -21 by -3 to get 7.
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