2r-12=-2

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Solution for 2r-12=-2 equation: 



2r-12=-2

We move all terms to the left:

2r-12-(-2)=0

We add all the numbers together, and all the variables

2r-10=0

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

2r=10

r=10/2

r=5

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