2(-5r-4)+7(r+1)=-13

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Solution for 2(-5r-4)+7(r+1)=-13 equation: 



2(-5r-4)+7(r+1)=-13

We move all terms to the left:

2(-5r-4)+7(r+1)-(-13)=0

We add all the numbers together, and all the variables

2(-5r-4)+7(r+1)+13=0

We multiply parentheses

-10r+7r-8+7+13=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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