Solve for a
a=2b+7
Solve for b
b=\frac{a-7}{2}
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2a=14+4b
Add 4b to both sides.
2a=4b+14
The equation is in standard form.
\frac{2a}{2}=\frac{4b+14}{2}
Divide both sides by 2.
a=\frac{4b+14}{2}
Dividing by 2 undoes the multiplication by 2.
a=2b+7
Divide 14+4b by 2.
-4b=14-2a
Subtract 2a from both sides.
\frac{-4b}{-4}=\frac{14-2a}{-4}
Divide both sides by -4.
b=\frac{14-2a}{-4}
Dividing by -4 undoes the multiplication by -4.
b=\frac{a-7}{2}
Divide 14-2a by -4.
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