R(x)=-2x-4

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Solution for R(x)=-2x-4 equation: 



(R)=-2R-4

We move all terms to the left:

(R)-(-2R-4)=0

We get rid of parentheses

R+2R+4=0

We add all the numbers together, and all the variables

3R+4=0

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

3R=-4

R=-4/3

R=-1+1/3

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