-.50r-12=-27

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Solution for -.50r-12=-27 equation: 



-.50r-12=-27

We move all terms to the left:

-.50r-12-(-27)=0

We add all the numbers together, and all the variables

-0.5r+15=0

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

-0.5r=-15

r=-15/-0.5

r=+30

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