(13x+21)=(12x+25)

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Solution for (13x+21)=(12x+25) equation: 



(13x+21)=(12x+25)

We move all terms to the left:

(13x+21)-((12x+25))=0

We get rid of parentheses

13x-((12x+25))+21=0



We calculate terms in parentheses: -((12x+25)), so:

(12x+25)

We get rid of parentheses

12x+25

Back to the equation:

-(12x+25)



We get rid of parentheses

13x-12x-25+21=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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