9x+3=21.X=

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Solution for 9x+3=21.X= equation: 



9x+3=21.x=

We move all terms to the left:

9x+3-(21.x)=0

We add all the numbers together, and all the variables

9x-(+21.x)+3=0

We get rid of parentheses

9x-21.x+3=0

We add all the numbers together, and all the variables

-12x+3=0

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

-12x=-3

x=-3/-12

x=1/4

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