Solve for n
n=15
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7n=3\times 35
Variable n cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 3n, the least common multiple of 3,n.
7n=105
Multiply 3 and 35 to get 105.
n=\frac{105}{7}
Divide both sides by 7.
n=15
Divide 105 by 7 to get 15.
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