129=2x-3(-5x-9)

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Solution for 129=2x-3(-5x-9) equation: 



129=2x-3(-5x-9)

We move all terms to the left:

129-(2x-3(-5x-9))=0



We calculate terms in parentheses: -(2x-3(-5x-9)), so:

2x-3(-5x-9)

We multiply parentheses

2x+15x+27

We add all the numbers together, and all the variables

17x+27

Back to the equation:

-(17x+27)



We get rid of parentheses

-17x-27+129=0

We add all the numbers together, and all the variables

-17x+102=0

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

-17x=-102

x=-102/-17

x=+6

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