6r+3=r-12

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Solution for 6r+3=r-12 equation: 



6r+3=r-12

We move all terms to the left:

6r+3-(r-12)=0

We get rid of parentheses

6r-r+12+3=0

We add all the numbers together, and all the variables

5r+15=0

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

5r=-15

r=-15/5

r=-3

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