-4x-9+3=42

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Solution for -4x-9+3=42 equation: 



-4x-9+3=42

We move all terms to the left:

-4x-9+3-(42)=0

We add all the numbers together, and all the variables

-4x-48=0

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

-4x=48

x=48/-4

x=-12

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