-4=r-7-4r

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



-4=r-7-4r

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-3r-7)-4=0

We get rid of parentheses

3r+7-4=0

We add all the numbers together, and all the variables

3r+3=0

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

3r=-3

r=-3/3

r=-1

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