x=(3x-7)+(x+5)

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Solution for x=(3x-7)+(x+5) equation: 



x=(3x-7)+(x+5)

We move all terms to the left:

x-((3x-7)+(x+5))=0



We calculate terms in parentheses: -((3x-7)+(x+5)), so:

(3x-7)+(x+5)

We get rid of parentheses

3x+x-7+5

We add all the numbers together, and all the variables

4x-2

Back to the equation:

-(4x-2)



We get rid of parentheses

x-4x+2=0

We add all the numbers together, and all the variables

-3x+2=0

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

-3x=-2

x=-2/-3

x=2/3

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