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