3+15=-2(4x-9)

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Solution for 3+15=-2(4x-9) equation: 



3+15=-2(4x-9)

We move all terms to the left:

3+15-(-2(4x-9))=0

We add all the numbers together, and all the variables

-(-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

8x-18+18=0

We add all the numbers together, and all the variables

8x=0

x=0/8

x=0

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