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6-7n=-20+3
We move all terms to the left:
6-7n-(-20+3)=0
We add all the numbers together, and all the variables
-7n+6-(-17)=0
We add all the numbers together, and all the variables
-7n+23=0
We move all terms containing n to the left, all other terms to the right
-7n=-23
n=-23/-7
n=3+2/7
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