(2-7x)3=9

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Solution for (2-7x)3=9 equation: 



(2-7x)3=9

We move all terms to the left:

(2-7x)3-(9)=0

We add all the numbers together, and all the variables

(-7x+2)3-9=0

We multiply parentheses

-21x+6-9=0

We add all the numbers together, and all the variables

-21x-3=0

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

-21x=3

x=3/-21

x=-1/7

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