-4(r-18)=12

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Solution for -4(r-18)=12 equation: 



-4(r-18)=12

We move all terms to the left:

-4(r-18)-(12)=0

We multiply parentheses

-4r+72-12=0

We add all the numbers together, and all the variables

-4r+60=0

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

-4r=-60

r=-60/-4

r=+15

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