3(x-21)=9x

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Solution for 3(x-21)=9x equation: 



3(x-21)=9x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-9x+3x-63=0

We add all the numbers together, and all the variables

-6x-63=0

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

-6x=63

x=63/-6

x=-10+1/2

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