4x-9=-3(x-4)

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



4x-9=-3(x-4)

We move all terms to the left:

4x-9-(-3(x-4))=0



We calculate terms in parentheses: -(-3(x-4)), so:

-3(x-4)

We multiply parentheses

-3x+12

Back to the equation:

-(-3x+12)



We get rid of parentheses

4x+3x-12-9=0

We add all the numbers together, and all the variables

7x-21=0

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

7x=21

x=21/7

x=3

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