Solve for x
x=19
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5x+15-8x=-42
Subtract 8x from both sides.
-3x+15=-42
Combine 5x and -8x to get -3x.
-3x=-42-15
Subtract 15 from both sides.
-3x=-57
Subtract 15 from -42 to get -57.
x=\frac{-57}{-3}
Divide both sides by -3.
x=19
Divide -57 by -3 to get 19.
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