-.4w=42

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Solution for -.4w=42 equation: 



-.4w=42

We move all terms to the left:

-.4w-(42)=0

We add all the numbers together, and all the variables

-0.4w-42=0

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

-0.4w=42

w=42/-0.4

w=-105

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