20=n-3+4

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Solution for 20=n-3+4 equation:



20=n-3+4
We move all terms to the left:
20-(n-3+4)=0
We add all the numbers together, and all the variables
-(n+1)+20=0
We get rid of parentheses
-n-1+20=0
We add all the numbers together, and all the variables
-1n+19=0
We move all terms containing n to the left, all other terms to the right
-n=-19
n=-19/-1
n=+19

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