Solve for x
x=40
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45x+12600-60x=12000
Use the distributive property to multiply 60 by 210-x.
-15x+12600=12000
Combine 45x and -60x to get -15x.
-15x=12000-12600
Subtract 12600 from both sides.
-15x=-600
Subtract 12600 from 12000 to get -600.
x=\frac{-600}{-15}
Divide both sides by -15.
x=40
Divide -600 by -15 to get 40.
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