Solve for x
x=40
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120-x=4\left(-x+60\right)
Variable x cannot be equal to 60 since division by zero is not defined. Multiply both sides of the equation by 2\left(-x+60\right).
120-x=-4x+240
Use the distributive property to multiply 4 by -x+60.
120-x+4x=240
Add 4x to both sides.
120+3x=240
Combine -x and 4x to get 3x.
3x=240-120
Subtract 120 from both sides.
3x=120
Subtract 120 from 240 to get 120.
x=\frac{120}{3}
Divide both sides by 3.
x=40
Divide 120 by 3 to get 40.
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