Solve for x
x=\frac{3}{5}=0.6
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1100x-120-900x=0
Subtract 900x from both sides.
200x-120=0
Combine 1100x and -900x to get 200x.
200x=120
Add 120 to both sides. Anything plus zero gives itself.
x=\frac{120}{200}
Divide both sides by 200.
x=\frac{3}{5}
Reduce the fraction \frac{120}{200} to lowest terms by extracting and canceling out 40.
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