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-220.85=-7(5n+5)
We move all terms to the left:
-220.85-(-7(5n+5))=0
We calculate terms in parentheses: -(-7(5n+5)), so:We get rid of parentheses
-7(5n+5)
We multiply parentheses
-35n-35
Back to the equation:
-(-35n-35)
35n+35-220.85=0
We add all the numbers together, and all the variables
35n-185.85=0
We move all terms containing n to the left, all other terms to the right
35n=185.85
n=185.85/35
n=5+1.8547008547009/5.982905982906
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