Solve for a
a=-\frac{c}{2}-b
Solve for b
b=-\frac{c}{2}-a
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2a+c=-2b
Subtract 2b from both sides. Anything subtracted from zero gives its negation.
2a=-2b-c
Subtract c from both sides.
\frac{2a}{2}=\frac{-2b-c}{2}
Divide both sides by 2.
a=\frac{-2b-c}{2}
Dividing by 2 undoes the multiplication by 2.
a=-\frac{c}{2}-b
Divide -2b-c by 2.
2b+c=-2a
Subtract 2a from both sides. Anything subtracted from zero gives its negation.
2b=-2a-c
Subtract c from both sides.
\frac{2b}{2}=\frac{-2a-c}{2}
Divide both sides by 2.
b=\frac{-2a-c}{2}
Dividing by 2 undoes the multiplication by 2.
b=-\frac{c}{2}-a
Divide -2a-c by 2.
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