Solve for x
x=60
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2.5x-4x=-90
Subtract 4x from both sides.
-1.5x=-90
Combine 2.5x and -4x to get -1.5x.
x=\frac{-90}{-1.5}
Divide both sides by -1.5.
x=\frac{-900}{-15}
Expand \frac{-90}{-1.5} by multiplying both numerator and the denominator by 10.
x=60
Divide -900 by -15 to get 60.
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