r-7=2r-4r+11

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Solution for r-7=2r-4r+11 equation: 



r-7=2r-4r+11

We move all terms to the left:

r-7-(2r-4r+11)=0

We add all the numbers together, and all the variables

r-(-2r+11)-7=0

We get rid of parentheses

r+2r-11-7=0

We add all the numbers together, and all the variables

3r-18=0

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

3r=18

r=18/3

r=6

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