Solve for p
p=-\frac{2r}{3}+49
Solve for r
r=\frac{147-3p}{2}
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3p=147-2r
Subtract 2r from both sides.
\frac{3p}{3}=\frac{147-2r}{3}
Divide both sides by 3.
p=\frac{147-2r}{3}
Dividing by 3 undoes the multiplication by 3.
p=-\frac{2r}{3}+49
Divide 147-2r by 3.
2r=147-3p
Subtract 3p from both sides.
\frac{2r}{2}=\frac{147-3p}{2}
Divide both sides by 2.
r=\frac{147-3p}{2}
Dividing by 2 undoes the multiplication by 2.
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