Solve for b
b=9
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\frac{2}{3}b+5+b=20
Add b to both sides.
\frac{5}{3}b+5=20
Combine \frac{2}{3}b and b to get \frac{5}{3}b.
\frac{5}{3}b=20-5
Subtract 5 from both sides.
\frac{5}{3}b=15
Subtract 5 from 20 to get 15.
b=15\times \frac{3}{5}
Multiply both sides by \frac{3}{5}, the reciprocal of \frac{5}{3}.
b=\frac{15\times 3}{5}
Express 15\times \frac{3}{5} as a single fraction.
b=\frac{45}{5}
Multiply 15 and 3 to get 45.
b=9
Divide 45 by 5 to get 9.
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