Solve for x
x=20
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4005+100.25x-300.5x=0
Subtract 300.5x from both sides.
4005-200.25x=0
Combine 100.25x and -300.5x to get -200.25x.
-200.25x=-4005
Subtract 4005 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-4005}{-200.25}
Divide both sides by -200.25.
x=\frac{-400500}{-20025}
Expand \frac{-4005}{-200.25} by multiplying both numerator and the denominator by 100.
x=20
Divide -400500 by -20025 to get 20.
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