-4(r+3)=-11(12+4r)

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Solution for -4(r+3)=-11(12+4r) equation: 



-4(r+3)=-11(12+4r)

We move all terms to the left:

-4(r+3)-(-11(12+4r))=0

We add all the numbers together, and all the variables

-4(r+3)-(-11(4r+12))=0

We multiply parentheses

-4r-(-11(4r+12))-12=0



We calculate terms in parentheses: -(-11(4r+12)), so:

-11(4r+12)

We multiply parentheses

-44r-132

Back to the equation:

-(-44r-132)



We get rid of parentheses

-4r+44r+132-12=0

We add all the numbers together, and all the variables

40r+120=0

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

40r=-120

r=-120/40

r=-3

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