-4r+5r+12=-4r-r

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Solution for -4r+5r+12=-4r-r equation: 



-4r+5r+12=-4r-r

We move all terms to the left:

-4r+5r+12-(-4r-r)=0

We add all the numbers together, and all the variables

-4r+5r-(-5r)+12=0

We add all the numbers together, and all the variables

r-(-5r)+12=0

We get rid of parentheses

r+5r+12=0

We add all the numbers together, and all the variables

6r+12=0

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

6r=-12

r=-12/6

r=-2

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