-4(r+3)=-42

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Solution for -4(r+3)=-42 equation: 



-4(r+3)=-42

We move all terms to the left:

-4(r+3)-(-42)=0

We add all the numbers together, and all the variables

-4(r+3)+42=0

We multiply parentheses

-4r-12+42=0

We add all the numbers together, and all the variables

-4r+30=0

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

-4r=-30

r=-30/-4

r=7+1/2

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