7+7(6r+8)=-9(1-4r)

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Solution for 7+7(6r+8)=-9(1-4r) equation: 



7+7(6r+8)=-9(1-4r)

We move all terms to the left:

7+7(6r+8)-(-9(1-4r))=0

We add all the numbers together, and all the variables

7(6r+8)-(-9(-4r+1))+7=0

We multiply parentheses

42r-(-9(-4r+1))+56+7=0



We calculate terms in parentheses: -(-9(-4r+1)), so:

-9(-4r+1)

We multiply parentheses

36r-9

Back to the equation:

-(36r-9)



We add all the numbers together, and all the variables

42r-(36r-9)+63=0

We get rid of parentheses

42r-36r+9+63=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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