Solve for x
x=160
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192-x=0.2x
Multiply 240 and 0.8 to get 192.
192-x-0.2x=0
Subtract 0.2x from both sides.
192-1.2x=0
Combine -x and -0.2x to get -1.2x.
-1.2x=-192
Subtract 192 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-192}{-1.2}
Divide both sides by -1.2.
x=\frac{-1920}{-12}
Expand \frac{-192}{-1.2} by multiplying both numerator and the denominator by 10.
x=160
Divide -1920 by -12 to get 160.
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