-5=7-3r

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Solution for -5=7-3r equation: 



-5=7-3r

We move all terms to the left:

-5-(7-3r)=0

We add all the numbers together, and all the variables

-(-3r+7)-5=0

We get rid of parentheses

3r-7-5=0

We add all the numbers together, and all the variables

3r-12=0

We move all terms containing r to the left, all other terms to the right

3r=12

r=12/3

r=4

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