8r+7=38r+12

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Solution for 8r+7=38r+12 equation: 



8r+7=38r+12

We move all terms to the left:

8r+7-(38r+12)=0

We get rid of parentheses

8r-38r-12+7=0

We add all the numbers together, and all the variables

-30r-5=0

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

-30r=5

r=5/-30

r=-1/6

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