8+3(r-7)=4r

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Solution for 8+3(r-7)=4r equation: 



8+3(r-7)=4r

We move all terms to the left:

8+3(r-7)-(4r)=0

We add all the numbers together, and all the variables

-4r+3(r-7)+8=0

We multiply parentheses

-4r+3r-21+8=0

We add all the numbers together, and all the variables

-1r-13=0

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

-r=13

r=13/-1

r=-13

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