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3(6n+7)=-150
We move all terms to the left:
3(6n+7)-(-150)=0
We add all the numbers together, and all the variables
3(6n+7)+150=0
We multiply parentheses
18n+21+150=0
We add all the numbers together, and all the variables
18n+171=0
We move all terms containing n to the left, all other terms to the right
18n=-171
n=-171/18
n=-9+1/2
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