r+3=1-2r+r

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Solution for r+3=1-2r+r equation: 



r+3=1-2r+r

We move all terms to the left:

r+3-(1-2r+r)=0

We add all the numbers together, and all the variables

r-(-1r+1)+3=0

We get rid of parentheses

r+1r-1+3=0

We add all the numbers together, and all the variables

2r+2=0

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

2r=-2

r=-2/2

r=-1

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