(-56+15r)=r

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Solution for (-56+15r)=r equation: 



(-56+15r)=r

We move all terms to the left:

(-56+15r)-(r)=0

We add all the numbers together, and all the variables

(15r-56)-r=0

We add all the numbers together, and all the variables

-1r+(15r-56)=0

We get rid of parentheses

-1r+15r-56=0

We add all the numbers together, and all the variables

14r-56=0

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

14r=56

r=56/14

r=4

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