-2=10+r

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Solution for -2=10+r equation:



-2=10+r
We move all terms to the left:
-2-(10+r)=0
We add all the numbers together, and all the variables
-(r+10)-2=0
We get rid of parentheses
-r-10-2=0
We add all the numbers together, and all the variables
-1r-12=0
We move all terms containing r to the left, all other terms to the right
-r=12
r=12/-1
r=-12

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