3(-4r-11)=(4r+21)

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Solution for 3(-4r-11)=(4r+21) equation: 



3(-4r-11)=(4r+21)

We move all terms to the left:

3(-4r-11)-((4r+21))=0

We multiply parentheses

-12r-((4r+21))-33=0



We calculate terms in parentheses: -((4r+21)), so:

(4r+21)

We get rid of parentheses

4r+21

Back to the equation:

-(4r+21)



We get rid of parentheses

-12r-4r-21-33=0

We add all the numbers together, and all the variables

-16r-54=0

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

-16r=54

r=54/-16

r=-3+3/8

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