-r=-8+7r

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Solution for -r=-8+7r equation:



-r=-8+7r
We move all terms to the left:
-r-(-8+7r)=0
We add all the numbers together, and all the variables
-r-(7r-8)=0
We add all the numbers together, and all the variables
-1r-(7r-8)=0
We get rid of parentheses
-1r-7r+8=0
We add all the numbers together, and all the variables
-8r+8=0
We move all terms containing r to the left, all other terms to the right
-8r=-8
r=-8/-8
r=1

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