20-(2r-5)=25

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Solution for 20-(2r-5)=25 equation: 



20-(2r-5)=25

We move all terms to the left:

20-(2r-5)-(25)=0

We add all the numbers together, and all the variables

-(2r-5)-5=0

We get rid of parentheses

-2r+5-5=0

We add all the numbers together, and all the variables

-2r=0

r=0/-2

r=0

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