Solve for n
n=15
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3\times 10=2n
Multiply both sides of the equation by 6, the least common multiple of 2,3.
30=2n
Multiply 3 and 10 to get 30.
2n=30
Swap sides so that all variable terms are on the left hand side.
n=\frac{30}{2}
Divide both sides by 2.
n=15
Divide 30 by 2 to get 15.
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