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-20n/4=-4
We move all terms to the left:
-20n/4-(-4)=0
We add all the numbers together, and all the variables
-20n/4+4=0
We multiply all the terms by the denominator
-20n+4*4=0
We add all the numbers together, and all the variables
-20n+16=0
We move all terms containing n to the left, all other terms to the right
-20n=-16
n=-16/-20
n=4/5
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