-21+4(x-1)=4x-3(4x-1)-4

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Solution for -21+4(x-1)=4x-3(4x-1)-4 equation: 



-21+4(x-1)=4x-3(4x-1)-4

We move all terms to the left:

-21+4(x-1)-(4x-3(4x-1)-4)=0

We multiply parentheses

4x-(4x-3(4x-1)-4)-4-21=0



We calculate terms in parentheses: -(4x-3(4x-1)-4), so:

4x-3(4x-1)-4

We multiply parentheses

4x-12x+3-4

We add all the numbers together, and all the variables

-8x-1

Back to the equation:

-(-8x-1)



We add all the numbers together, and all the variables

4x-(-8x-1)-25=0

We get rid of parentheses

4x+8x+1-25=0

We add all the numbers together, and all the variables

12x-24=0

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

12x=24

x=24/12

x=2

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