7(8r-3)=4r-21

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Solution for 7(8r-3)=4r-21 equation: 



7(8r-3)=4r-21

We move all terms to the left:

7(8r-3)-(4r-21)=0

We multiply parentheses

56r-(4r-21)-21=0

We get rid of parentheses

56r-4r+21-21=0

We add all the numbers together, and all the variables

52r=0

r=0/52

r=0

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