129=3(3+8x)

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Solution for 129=3(3+8x) equation: 



129=3(3+8x)

We move all terms to the left:

129-(3(3+8x))=0

We add all the numbers together, and all the variables

-(3(8x+3))+129=0



We calculate terms in parentheses: -(3(8x+3)), so:

3(8x+3)

We multiply parentheses

24x+9

Back to the equation:

-(24x+9)



We get rid of parentheses

-24x-9+129=0

We add all the numbers together, and all the variables

-24x+120=0

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

-24x=-120

x=-120/-24

x=+5

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