-5=7-r

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Solution for -5=7-r equation:



-5=7-r
We move all terms to the left:
-5-(7-r)=0
We add all the numbers together, and all the variables
-(-1r+7)-5=0
We get rid of parentheses
1r-7-5=0
We add all the numbers together, and all the variables
r-12=0
We move all terms containing r to the left, all other terms to the right
r=12

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