(3x)=(x+8)+(7x-4)

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Solution for (3x)=(x+8)+(7x-4) equation: 



(3x)=(x+8)+(7x-4)

We move all terms to the left:

(3x)-((x+8)+(7x-4))=0



We calculate terms in parentheses: -((x+8)+(7x-4)), so:

(x+8)+(7x-4)

We get rid of parentheses

x+7x+8-4

We add all the numbers together, and all the variables

8x+4

Back to the equation:

-(8x+4)



We get rid of parentheses

3x-8x-4=0

We add all the numbers together, and all the variables

-5x-4=0

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

-5x=4

x=4/-5

x=-4/5

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