Solve for x
x=-80
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1=-0.2x-15
Combine 0.3x and -0.5x to get -0.2x.
-0.2x-15=1
Swap sides so that all variable terms are on the left hand side.
-0.2x=1+15
Add 15 to both sides.
-0.2x=16
Add 1 and 15 to get 16.
x=\frac{16}{-0.2}
Divide both sides by -0.2.
x=\frac{160}{-2}
Expand \frac{16}{-0.2} by multiplying both numerator and the denominator by 10.
x=-80
Divide 160 by -2 to get -80.
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