Solve for n
n=4
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13n=4\times 13
Multiply both sides of the equation by 260, the least common multiple of 20,65.
13n=52
Multiply 4 and 13 to get 52.
n=\frac{52}{13}
Divide both sides by 13.
n=4
Divide 52 by 13 to get 4.
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