(6x+21)=(10x+9)

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Solution for (6x+21)=(10x+9) equation: 



(6x+21)=(10x+9)

We move all terms to the left:

(6x+21)-((10x+9))=0

We get rid of parentheses

6x-((10x+9))+21=0



We calculate terms in parentheses: -((10x+9)), so:

(10x+9)

We get rid of parentheses

10x+9

Back to the equation:

-(10x+9)



We get rid of parentheses

6x-10x-9+21=0

We add all the numbers together, and all the variables

-4x+12=0

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

-4x=-12

x=-12/-4

x=+3

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