Solve for n
n=9
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4+n+2=3\times 5
Multiply both sides by 5.
6+n=3\times 5
Add 4 and 2 to get 6.
6+n=15
Multiply 3 and 5 to get 15.
n=15-6
Subtract 6 from both sides.
n=9
Subtract 6 from 15 to get 9.
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