15+6r=45+8r

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Solution for 15+6r=45+8r equation: 



15+6r=45+8r

We move all terms to the left:

15+6r-(45+8r)=0

We add all the numbers together, and all the variables

6r-(8r+45)+15=0

We get rid of parentheses

6r-8r-45+15=0

We add all the numbers together, and all the variables

-2r-30=0

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

-2r=30

r=30/-2

r=-15

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