x-4=3(x-4)

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Solution for x-4=3(x-4) equation: 



x-4=3(x-4)

We move all terms to the left:

x-4-(3(x-4))=0



We calculate terms in parentheses: -(3(x-4)), so:

3(x-4)

We multiply parentheses

3x-12

Back to the equation:

-(3x-12)



We get rid of parentheses

x-3x+12-4=0

We add all the numbers together, and all the variables

-2x+8=0

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

-2x=-8

x=-8/-2

x=+4

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