r-2=4-11-7

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Solution for r-2=4-11-7 equation: 



r-2=4-11-7

We move all terms to the left:

r-2-(4-11-7)=0

We add all the numbers together, and all the variables

r-2-(-14)=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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