-4(3r+1)+r-3=15

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Solution for -4(3r+1)+r-3=15 equation: 



-4(3r+1)+r-3=15

We move all terms to the left:

-4(3r+1)+r-3-(15)=0

We add all the numbers together, and all the variables

r-4(3r+1)-18=0

We multiply parentheses

r-12r-4-18=0

We add all the numbers together, and all the variables

-11r-22=0

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

-11r=22

r=22/-11

r=-2

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