28=7x+(x-4)

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Solution for 28=7x+(x-4) equation: 



28=7x+(x-4)

We move all terms to the left:

28-(7x+(x-4))=0



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

7x+(x-4)

We get rid of parentheses

7x+x-4

We add all the numbers together, and all the variables

8x-4

Back to the equation:

-(8x-4)



We get rid of parentheses

-8x+4+28=0

We add all the numbers together, and all the variables

-8x+32=0

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

-8x=-32

x=-32/-8

x=+4

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