3n-2+n=7n-15+4

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Solution for 3n-2+n=7n-15+4 equation:



3n-2+n=7n-15+4
We move all terms to the left:
3n-2+n-(7n-15+4)=0
We add all the numbers together, and all the variables
3n+n-(7n-11)-2=0
We add all the numbers together, and all the variables
4n-(7n-11)-2=0
We get rid of parentheses
4n-7n+11-2=0
We add all the numbers together, and all the variables
-3n+9=0
We move all terms containing n to the left, all other terms to the right
-3n=-9
n=-9/-3
n=+3

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