-25=2(5+4n)+5(n-7)

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Solution for -25=2(5+4n)+5(n-7) equation:



-25=2(5+4n)+5(n-7)
We move all terms to the left:
-25-(2(5+4n)+5(n-7))=0
We add all the numbers together, and all the variables
-(2(4n+5)+5(n-7))-25=0
We calculate terms in parentheses: -(2(4n+5)+5(n-7)), so:
2(4n+5)+5(n-7)
We multiply parentheses
8n+5n+10-35
We add all the numbers together, and all the variables
13n-25
Back to the equation:
-(13n-25)
We get rid of parentheses
-13n+25-25=0
We add all the numbers together, and all the variables
-13n=0
n=0/-13
n=0

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