Solve for c
c = -\frac{7}{3} = -2\frac{1}{3} \approx -2.333333333
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c-7-4c=0
Subtract 4c from both sides.
-3c-7=0
Combine c and -4c to get -3c.
-3c=7
Add 7 to both sides. Anything plus zero gives itself.
c=\frac{7}{-3}
Divide both sides by -3.
c=-\frac{7}{3}
Fraction \frac{7}{-3} can be rewritten as -\frac{7}{3} by extracting the negative sign.
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