7(-8r-5)+r=-200

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Solution for 7(-8r-5)+r=-200 equation: 



7(-8r-5)+r=-200

We move all terms to the left:

7(-8r-5)+r-(-200)=0

We add all the numbers together, and all the variables

r+7(-8r-5)+200=0

We multiply parentheses

r-56r-35+200=0

We add all the numbers together, and all the variables

-55r+165=0

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

-55r=-165

r=-165/-55

r=+3

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