Solve for y
y=-750
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-300-0.4y=0
Multiply -0.6 and 500 to get -300.
-0.4y=300
Add 300 to both sides. Anything plus zero gives itself.
y=\frac{300}{-0.4}
Divide both sides by -0.4.
y=\frac{3000}{-4}
Expand \frac{300}{-0.4} by multiplying both numerator and the denominator by 10.
y=-750
Divide 3000 by -4 to get -750.
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