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15(n+3)=4
We move all terms to the left:
15(n+3)-(4)=0
We multiply parentheses
15n+45-4=0
We add all the numbers together, and all the variables
15n+41=0
We move all terms containing n to the left, all other terms to the right
15n=-41
n=-41/15
n=-2+11/15
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