Solve for b
b=10
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3+\frac{2}{5}b+\frac{2}{5}b=11
Add \frac{2}{5}b to both sides.
3+\frac{4}{5}b=11
Combine \frac{2}{5}b and \frac{2}{5}b to get \frac{4}{5}b.
\frac{4}{5}b=11-3
Subtract 3 from both sides.
\frac{4}{5}b=8
Subtract 3 from 11 to get 8.
b=8\times \frac{5}{4}
Multiply both sides by \frac{5}{4}, the reciprocal of \frac{4}{5}.
b=\frac{8\times 5}{4}
Express 8\times \frac{5}{4} as a single fraction.
b=\frac{40}{4}
Multiply 8 and 5 to get 40.
b=10
Divide 40 by 4 to get 10.
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