5r-12=4r-30

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Solution for 5r-12=4r-30 equation: 



5r-12=4r-30

We move all terms to the left:

5r-12-(4r-30)=0

We get rid of parentheses

5r-4r+30-12=0

We add all the numbers together, and all the variables

r+18=0

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

r=-18

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