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3(1+5n)=-102
We move all terms to the left:
3(1+5n)-(-102)=0
We add all the numbers together, and all the variables
3(5n+1)-(-102)=0
We add all the numbers together, and all the variables
3(5n+1)+102=0
We multiply parentheses
15n+3+102=0
We add all the numbers together, and all the variables
15n+105=0
We move all terms containing n to the left, all other terms to the right
15n=-105
n=-105/15
n=-7
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