Solve for x
x=80
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0.875x=140-x+0.125x
Combine 1x and -0.125x to get 0.875x.
0.875x=140-0.875x
Combine -x and 0.125x to get -0.875x.
0.875x+0.875x=140
Add 0.875x to both sides.
1.75x=140
Combine 0.875x and 0.875x to get 1.75x.
x=\frac{140}{1.75}
Divide both sides by 1.75.
x=\frac{14000}{175}
Expand \frac{140}{1.75} by multiplying both numerator and the denominator by 100.
x=80
Divide 14000 by 175 to get 80.
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