Solve for y
y=750
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y=100+0.8y-200+250
Use the distributive property to multiply 0.8 by y-250.
y=-100+0.8y+250
Subtract 200 from 100 to get -100.
y=150+0.8y
Add -100 and 250 to get 150.
y-0.8y=150
Subtract 0.8y from both sides.
0.2y=150
Combine y and -0.8y to get 0.2y.
y=\frac{150}{0.2}
Divide both sides by 0.2.
y=\frac{1500}{2}
Expand \frac{150}{0.2} by multiplying both numerator and the denominator by 10.
y=750
Divide 1500 by 2 to get 750.
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