(4x+21)=(10x+3)

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Solution for (4x+21)=(10x+3) equation: 



(4x+21)=(10x+3)

We move all terms to the left:

(4x+21)-((10x+3))=0

We get rid of parentheses

4x-((10x+3))+21=0



We calculate terms in parentheses: -((10x+3)), so:

(10x+3)

We get rid of parentheses

10x+3

Back to the equation:

-(10x+3)



We get rid of parentheses

4x-10x-3+21=0

We add all the numbers together, and all the variables

-6x+18=0

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

-6x=-18

x=-18/-6

x=+3

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