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7-2(4-3n)+8=-(n+31)
We move all terms to the left:
7-2(4-3n)+8-(-(n+31))=0
We add all the numbers together, and all the variables
-2(-3n+4)-(-(n+31))+7+8=0
We add all the numbers together, and all the variables
-2(-3n+4)-(-(n+31))+15=0
We multiply parentheses
6n-(-(n+31))-8+15=0
We calculate terms in parentheses: -(-(n+31)), so:We add all the numbers together, and all the variables
-(n+31)
We get rid of parentheses
-n-31
We add all the numbers together, and all the variables
-1n-31
Back to the equation:
-(-1n-31)
6n-(-1n-31)+7=0
We get rid of parentheses
6n+1n+31+7=0
We add all the numbers together, and all the variables
7n+38=0
We move all terms containing n to the left, all other terms to the right
7n=-38
n=-38/7
n=-5+3/7
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