21x-8=4(5x+3)-4

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Solution for 21x-8=4(5x+3)-4 equation: 



21x-8=4(5x+3)-4

We move all terms to the left:

21x-8-(4(5x+3)-4)=0



We calculate terms in parentheses: -(4(5x+3)-4), so:

4(5x+3)-4

We multiply parentheses

20x+12-4

We add all the numbers together, and all the variables

20x+8

Back to the equation:

-(20x+8)



We get rid of parentheses

21x-20x-8-8=0

We add all the numbers together, and all the variables

x-16=0

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

x=16

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