9x-21=6(x-6)

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Solution for 9x-21=6(x-6) equation: 



9x-21=6(x-6)

We move all terms to the left:

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



We calculate terms in parentheses: -(6(x-6)), so:

6(x-6)

We multiply parentheses

6x-36

Back to the equation:

-(6x-36)



We get rid of parentheses

9x-6x+36-21=0

We add all the numbers together, and all the variables

3x+15=0

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

3x=-15

x=-15/3

x=-5

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