3+2r=4+r-6+7

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Solution for 3+2r=4+r-6+7 equation: 



3+2r=4+r-6+7

We move all terms to the left:

3+2r-(4+r-6+7)=0

We add all the numbers together, and all the variables

2r-(r+5)+3=0

We get rid of parentheses

2r-r-5+3=0

We add all the numbers together, and all the variables

r-2=0

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

r=2

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