-5r-30=-2(6+7r)

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Solution for -5r-30=-2(6+7r) equation: 



-5r-30=-2(6+7r)

We move all terms to the left:

-5r-30-(-2(6+7r))=0

We add all the numbers together, and all the variables

-5r-(-2(7r+6))-30=0



We calculate terms in parentheses: -(-2(7r+6)), so:

-2(7r+6)

We multiply parentheses

-14r-12

Back to the equation:

-(-14r-12)



We get rid of parentheses

-5r+14r+12-30=0

We add all the numbers together, and all the variables

9r-18=0

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

9r=18

r=18/9

r=2

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