-6(7-r)=30

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Solution for -6(7-r)=30 equation: 



-6(7-r)=30

We move all terms to the left:

-6(7-r)-(30)=0

We add all the numbers together, and all the variables

-6(-1r+7)-30=0

We multiply parentheses

6r-42-30=0

We add all the numbers together, and all the variables

6r-72=0

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

6r=72

r=72/6

r=12

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