-3(2-r)=12

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Solution for -3(2-r)=12 equation: 



-3(2-r)=12

We move all terms to the left:

-3(2-r)-(12)=0

We add all the numbers together, and all the variables

-3(-1r+2)-12=0

We multiply parentheses

3r-6-12=0

We add all the numbers together, and all the variables

3r-18=0

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

3r=18

r=18/3

r=6

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