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2/7+n=-20
We move all terms to the left:
2/7+n-(-20)=0
We add all the numbers together, and all the variables
n+20+2/7=0
We multiply all the terms by the denominator
n*7+2+20*7=0
We add all the numbers together, and all the variables
n*7+142=0
Wy multiply elements
7n+142=0
We move all terms containing n to the left, all other terms to the right
7n=-142
n=-142/7
n=-20+2/7
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