4x+12+21=7(x+2)+13

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Solution for 4x+12+21=7(x+2)+13 equation: 



4x+12+21=7(x+2)+13

We move all terms to the left:

4x+12+21-(7(x+2)+13)=0

We add all the numbers together, and all the variables

4x-(7(x+2)+13)+33=0



We calculate terms in parentheses: -(7(x+2)+13), so:

7(x+2)+13

We multiply parentheses

7x+14+13

We add all the numbers together, and all the variables

7x+27

Back to the equation:

-(7x+27)



We get rid of parentheses

4x-7x-27+33=0

We add all the numbers together, and all the variables

-3x+6=0

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

-3x=-6

x=-6/-3

x=+2

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