Solve for c
c=-2
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-4.5c-4-11=-6
Combine -12c and 7.5c to get -4.5c.
-4.5c-15=-6
Subtract 11 from -4 to get -15.
-4.5c=-6+15
Add 15 to both sides.
-4.5c=9
Add -6 and 15 to get 9.
c=\frac{9}{-4.5}
Divide both sides by -4.5.
c=\frac{90}{-45}
Expand \frac{9}{-4.5} by multiplying both numerator and the denominator by 10.
c=-2
Divide 90 by -45 to get -2.
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