15=2(2x-4)-9

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Solution for 15=2(2x-4)-9 equation: 



15=2(2x-4)-9

We move all terms to the left:

15-(2(2x-4)-9)=0



We calculate terms in parentheses: -(2(2x-4)-9), so:

2(2x-4)-9

We multiply parentheses

4x-8-9

We add all the numbers together, and all the variables

4x-17

Back to the equation:

-(4x-17)



We get rid of parentheses

-4x+17+15=0

We add all the numbers together, and all the variables

-4x+32=0

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

-4x=-32

x=-32/-4

x=+8

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