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 add all the numbers together, and all the variables

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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