(7x-4)=(9x-42)

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Solution for (7x-4)=(9x-42) equation: 



(7x-4)=(9x-42)

We move all terms to the left:

(7x-4)-((9x-42))=0

We get rid of parentheses

7x-((9x-42))-4=0



We calculate terms in parentheses: -((9x-42)), so:

(9x-42)

We get rid of parentheses

9x-42

Back to the equation:

-(9x-42)



We get rid of parentheses

7x-9x+42-4=0

We add all the numbers together, and all the variables

-2x+38=0

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

-2x=-38

x=-38/-2

x=+19

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