21x-16=5(4x+4)-4

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Solution for 21x-16=5(4x+4)-4 equation: 



21x-16=5(4x+4)-4

We move all terms to the left:

21x-16-(5(4x+4)-4)=0



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

5(4x+4)-4

We multiply parentheses

20x+20-4

We add all the numbers together, and all the variables

20x+16

Back to the equation:

-(20x+16)



We get rid of parentheses

21x-20x-16-16=0

We add all the numbers together, and all the variables

x-32=0

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

x=32

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