Solve for x
x=7920
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1.25x=12000-2100
Subtract 2100 from both sides.
1.25x=9900
Subtract 2100 from 12000 to get 9900.
x=\frac{9900}{1.25}
Divide both sides by 1.25.
x=\frac{990000}{125}
Expand \frac{9900}{1.25} by multiplying both numerator and the denominator by 100.
x=7920
Divide 990000 by 125 to get 7920.
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