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n/4+3(n=12)
We move all terms to the left:
n/4+3(n-(12))=0
We multiply parentheses
n/4+3n-36=0
We multiply all the terms by the denominator
n+3n*4-36*4=0
We add all the numbers together, and all the variables
n+3n*4-144=0
Wy multiply elements
n+12n-144=0
We add all the numbers together, and all the variables
13n-144=0
We move all terms containing n to the left, all other terms to the right
13n=144
n=144/13
n=11+1/13
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