(3x+5=7x-15)

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Solution for (3x+5=7x-15) equation: 



(3x+5=7x-15)

We move all terms to the left:

(3x+5-(7x-15))=0



We calculate terms in parentheses: +(3x+5-(7x-15)), so:

3x+5-(7x-15)

determiningTheFunctionDomain
3x-(7x-15)+5

We get rid of parentheses

3x-7x+15+5

We add all the numbers together, and all the variables

-4x+20

Back to the equation:

+(-4x+20)



We get rid of parentheses

-4x+20=0

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

-4x=-20

x=-20/-4

x=+5

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