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n+3+10n=7(1+3n)+2(-5n-4)
We move all terms to the left:
n+3+10n-(7(1+3n)+2(-5n-4))=0
We add all the numbers together, and all the variables
n+10n-(7(3n+1)+2(-5n-4))+3=0
We add all the numbers together, and all the variables
11n-(7(3n+1)+2(-5n-4))+3=0
We calculate terms in parentheses: -(7(3n+1)+2(-5n-4)), so:We get rid of parentheses
7(3n+1)+2(-5n-4)
We multiply parentheses
21n-10n+7-8
We add all the numbers together, and all the variables
11n-1
Back to the equation:
-(11n-1)
11n-11n+1+3=0
We add all the numbers together, and all the variables
4!=0
There is no solution for this equation
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