-129=-1+8n

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Solution for -129=-1+8n equation:



-129=-1+8n
We move all terms to the left:
-129-(-1+8n)=0
We add all the numbers together, and all the variables
-(8n-1)-129=0
We get rid of parentheses
-8n+1-129=0
We add all the numbers together, and all the variables
-8n-128=0
We move all terms containing n to the left, all other terms to the right
-8n=128
n=128/-8
n=-16

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