4(x+3)+21=4(2x-6)

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Solution for 4(x+3)+21=4(2x-6) equation: 



4(x+3)+21=4(2x-6)

We move all terms to the left:

4(x+3)+21-(4(2x-6))=0

We multiply parentheses

4x-(4(2x-6))+12+21=0



We calculate terms in parentheses: -(4(2x-6)), so:

4(2x-6)

We multiply parentheses

8x-24

Back to the equation:

-(8x-24)



We add all the numbers together, and all the variables

4x-(8x-24)+33=0

We get rid of parentheses

4x-8x+24+33=0

We add all the numbers together, and all the variables

-4x+57=0

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

-4x=-57

x=-57/-4

x=14+1/4

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