R2-4=-3r

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Solution for R2-4=-3r equation: 



2-4=-3R

We move all terms to the left:

2-4-(-3R)=0

We add all the numbers together, and all the variables

-(-3R)-2=0

We get rid of parentheses

3R-2=0

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

3R=2

R=2/3

R=2/3

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