25=7r-3

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Solution for 25=7r-3 equation: 



25=7r-3

We move all terms to the left:

25-(7r-3)=0

We get rid of parentheses

-7r+3+25=0

We add all the numbers together, and all the variables

-7r+28=0

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

-7r=-28

r=-28/-7

r=+4

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