3x+9-4x-4=42

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



3x+9-4x-4=42

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1x-37=0

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

-x=37

x=37/-1

x=-37

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