Solve for n
n = \frac{72}{5} = 14\frac{2}{5} = 14.4
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8\left(n-9\right)=3n
Multiply both sides of the equation by 24, the least common multiple of 3,8.
8n-72=3n
Use the distributive property to multiply 8 by n-9.
8n-72-3n=0
Subtract 3n from both sides.
5n-72=0
Combine 8n and -3n to get 5n.
5n=72
Add 72 to both sides. Anything plus zero gives itself.
n=\frac{72}{5}
Divide both sides by 5.
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Limits
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