10r-12=15r-1

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Solution for 10r-12=15r-1 equation: 



10r-12=15r-1

We move all terms to the left:

10r-12-(15r-1)=0

We get rid of parentheses

10r-15r+1-12=0

We add all the numbers together, and all the variables

-5r-11=0

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

-5r=11

r=11/-5

r=-2+1/5

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