(3x+40)=(7x-72)

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Solution for (3x+40)=(7x-72) equation: 



(3x+40)=(7x-72)

We move all terms to the left:

(3x+40)-((7x-72))=0

We get rid of parentheses

3x-((7x-72))+40=0



We calculate terms in parentheses: -((7x-72)), so:

(7x-72)

We get rid of parentheses

7x-72

Back to the equation:

-(7x-72)



We get rid of parentheses

3x-7x+72+40=0

We add all the numbers together, and all the variables

-4x+112=0

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

-4x=-112

x=-112/-4

x=+28

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