10r-20=2r-12

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Solution for 10r-20=2r-12 equation: 



10r-20=2r-12

We move all terms to the left:

10r-20-(2r-12)=0

We get rid of parentheses

10r-2r+12-20=0

We add all the numbers together, and all the variables

8r-8=0

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

8r=8

r=8/8

r=1

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