7x-28=5(x-4)

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Solution for 7x-28=5(x-4) equation: 



7x-28=5(x-4)

We move all terms to the left:

7x-28-(5(x-4))=0



We calculate terms in parentheses: -(5(x-4)), so:

5(x-4)

We multiply parentheses

5x-20

Back to the equation:

-(5x-20)



We get rid of parentheses

7x-5x+20-28=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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