Solve for a
a=\frac{15}{2}-5b
Solve for b
b=-\frac{a}{5}+\frac{3}{2}
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2a=15-10b
Subtract 10b from both sides.
\frac{2a}{2}=\frac{15-10b}{2}
Divide both sides by 2.
a=\frac{15-10b}{2}
Dividing by 2 undoes the multiplication by 2.
a=\frac{15}{2}-5b
Divide 15-10b by 2.
10b=15-2a
Subtract 2a from both sides.
\frac{10b}{10}=\frac{15-2a}{10}
Divide both sides by 10.
b=\frac{15-2a}{10}
Dividing by 10 undoes the multiplication by 10.
b=-\frac{a}{5}+\frac{3}{2}
Divide 15-2a by 10.
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