4x-9x=-23;(12,-15)

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Solution for 4x-9x=-23;(12,-15) equation: 



4x-9x=-23(12.-15)

We move all terms to the left:

4x-9x-(-23(12.-15))=0

We add all the numbers together, and all the variables

4x-9x-(-23(-3))=0

We add all the numbers together, and all the variables

-5x-69=0

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

-5x=69

x=69/-5

x=-13+4/5

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