4r+2-r+7=5r+12-3r-3

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Solution for 4r+2-r+7=5r+12-3r-3 equation: 



4r+2-r+7=5r+12-3r-3

We move all terms to the left:

4r+2-r+7-(5r+12-3r-3)=0

We add all the numbers together, and all the variables

4r-r-(2r+9)+2+7=0

We add all the numbers together, and all the variables

3r-(2r+9)+9=0

We get rid of parentheses

3r-2r-9+9=0

We add all the numbers together, and all the variables

r=0

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