Solve for x
x=160
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200-x-0.25x=0
Subtract 0.25x from both sides.
200-1.25x=0
Combine -x and -0.25x to get -1.25x.
-1.25x=-200
Subtract 200 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-200}{-1.25}
Divide both sides by -1.25.
x=\frac{-20000}{-125}
Expand \frac{-200}{-1.25} by multiplying both numerator and the denominator by 100.
x=160
Divide -20000 by -125 to get 160.
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