Solve for y
y = -\frac{9}{4} = -2\frac{1}{4} = -2.25
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30-40y=120
Multiply 30 and 1 to get 30.
-40y=120-30
Subtract 30 from both sides.
-40y=90
Subtract 30 from 120 to get 90.
y=\frac{90}{-40}
Divide both sides by -40.
y=-\frac{9}{4}
Reduce the fraction \frac{90}{-40} to lowest terms by extracting and canceling out 10.
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