Solve for m
m=\frac{280}{3}-s
Solve for s
s=\frac{280}{3}-m
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3m+3s=280
Combine -2m and 5m to get 3m.
3m=280-3s
Subtract 3s from both sides.
\frac{3m}{3}=\frac{280-3s}{3}
Divide both sides by 3.
m=\frac{280-3s}{3}
Dividing by 3 undoes the multiplication by 3.
m=\frac{280}{3}-s
Divide 280-3s by 3.
3m+3s=280
Combine -2m and 5m to get 3m.
3s=280-3m
Subtract 3m from both sides.
\frac{3s}{3}=\frac{280-3m}{3}
Divide both sides by 3.
s=\frac{280-3m}{3}
Dividing by 3 undoes the multiplication by 3.
s=\frac{280}{3}-m
Divide 280-3m by 3.
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