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-7(3n-8)-2n=240
We move all terms to the left:
-7(3n-8)-2n-(240)=0
We add all the numbers together, and all the variables
-2n-7(3n-8)-240=0
We multiply parentheses
-2n-21n+56-240=0
We add all the numbers together, and all the variables
-23n-184=0
We move all terms containing n to the left, all other terms to the right
-23n=184
n=184/-23
n=-8
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