R(x)=-x-7x=-2

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Solution for R(x)=-x-7x=-2 equation: 



(R)=-R-7R=-2

We move all terms to the left:

(R)-(-R-7R)=0

We add all the numbers together, and all the variables

R-(-8R)=0

We get rid of parentheses

R+8R=0

We add all the numbers together, and all the variables

9R=0

R=0/9

R=0

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