(3+r)=2r+4

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Solution for (3+r)=2r+4 equation: 



(3+r)=2r+4

We move all terms to the left:

(3+r)-(2r+4)=0

We add all the numbers together, and all the variables

(r+3)-(2r+4)=0

We get rid of parentheses

r-2r+3-4=0

We add all the numbers together, and all the variables

-1r-1=0

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

-r=1

r=1/-1

r=-1

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