7r-2=4r-5

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Solution for 7r-2=4r-5 equation: 



7r-2=4r-5

We move all terms to the left:

7r-2-(4r-5)=0

We get rid of parentheses

7r-4r+5-2=0

We add all the numbers together, and all the variables

3r+3=0

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

3r=-3

r=-3/3

r=-1

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