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86=2n-(4-3n)
We move all terms to the left:
86-(2n-(4-3n))=0
We add all the numbers together, and all the variables
-(2n-(-3n+4))+86=0
We calculate terms in parentheses: -(2n-(-3n+4)), so:We get rid of parentheses
2n-(-3n+4)
We get rid of parentheses
2n+3n-4
We add all the numbers together, and all the variables
5n-4
Back to the equation:
-(5n-4)
-5n+4+86=0
We add all the numbers together, and all the variables
-5n+90=0
We move all terms containing n to the left, all other terms to the right
-5n=-90
n=-90/-5
n=+18
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