Solve for x
x=-240
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\frac{1}{3}x+4-\frac{2}{5}x=20
Subtract \frac{2}{5}x from both sides.
-\frac{1}{15}x+4=20
Combine \frac{1}{3}x and -\frac{2}{5}x to get -\frac{1}{15}x.
-\frac{1}{15}x=20-4
Subtract 4 from both sides.
-\frac{1}{15}x=16
Subtract 4 from 20 to get 16.
x=16\left(-15\right)
Multiply both sides by -15, the reciprocal of -\frac{1}{15}.
x=-240
Multiply 16 and -15 to get -240.
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