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28=n/(-5)
We move all terms to the left:
28-(n/(-5))=0
We multiply all the terms by the denominator
-(n+28*(-5))=0
We calculate terms in parentheses: -(n+28*(-5)), so:We get rid of parentheses
n+28*(-5)
We add all the numbers together, and all the variables
n-140
Back to the equation:
-(n-140)
-n+140=0
We add all the numbers together, and all the variables
-1n+140=0
We move all terms containing n to the left, all other terms to the right
-n=-140
n=-140/-1
n=+140
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