(3x+12)=(5x-30)

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Solution for (3x+12)=(5x-30) equation: 



(3x+12)=(5x-30)

We move all terms to the left:

(3x+12)-((5x-30))=0

We get rid of parentheses

3x-((5x-30))+12=0



We calculate terms in parentheses: -((5x-30)), so:

(5x-30)

We get rid of parentheses

5x-30

Back to the equation:

-(5x-30)



We get rid of parentheses

3x-5x+30+12=0

We add all the numbers together, and all the variables

-2x+42=0

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

-2x=-42

x=-42/-2

x=+21

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