3x+x-4=2(x-7)

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Solution for 3x+x-4=2(x-7) equation: 



3x+x-4=2(x-7)

We move all terms to the left:

3x+x-4-(2(x-7))=0

We add all the numbers together, and all the variables

4x-(2(x-7))-4=0



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

2(x-7)

We multiply parentheses

2x-14

Back to the equation:

-(2x-14)



We get rid of parentheses

4x-2x+14-4=0

We add all the numbers together, and all the variables

2x+10=0

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

2x=-10

x=-10/2

x=-5

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