18-5x+9x=-2(-4x+9)

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Solution for 18-5x+9x=-2(-4x+9) equation: 



18-5x+9x=-2(-4x+9)

We move all terms to the left:

18-5x+9x-(-2(-4x+9))=0

We add all the numbers together, and all the variables

4x-(-2(-4x+9))+18=0



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

-2(-4x+9)

We multiply parentheses

8x-18

Back to the equation:

-(8x-18)



We get rid of parentheses

4x-8x+18+18=0

We add all the numbers together, and all the variables

-4x+36=0

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

-4x=-36

x=-36/-4

x=+9

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