21x-11=5(4x+4)-9

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Solution for 21x-11=5(4x+4)-9 equation: 



21x-11=5(4x+4)-9

We move all terms to the left:

21x-11-(5(4x+4)-9)=0



We calculate terms in parentheses: -(5(4x+4)-9), so:

5(4x+4)-9

We multiply parentheses

20x+20-9

We add all the numbers together, and all the variables

20x+11

Back to the equation:

-(20x+11)



We get rid of parentheses

21x-20x-11-11=0

We add all the numbers together, and all the variables

x-22=0

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

x=22

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