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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x-(-(5x-21)+x)-12=0



We calculate terms in parentheses: -(-(5x-21)+x), so:

-(5x-21)+x

We add all the numbers together, and all the variables

x-(5x-21)

We get rid of parentheses

x-5x+21

We add all the numbers together, and all the variables

-4x+21

Back to the equation:

-(-4x+21)



We get rid of parentheses

3x+4x-21-12=0

We add all the numbers together, and all the variables

7x-33=0

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

7x=33

x=33/7

x=4+5/7

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