Solve for x
x=15
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x+15=3x-15
Multiply both sides of the equation by 3.
x+15-3x=-15
Subtract 3x from both sides.
-2x+15=-15
Combine x and -3x to get -2x.
-2x=-15-15
Subtract 15 from both sides.
-2x=-30
Subtract 15 from -15 to get -30.
x=\frac{-30}{-2}
Divide both sides by -2.
x=15
Divide -30 by -2 to get 15.
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