X-42=4x

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Solution for X-42=4x equation: 



X-42=4X

We move all terms to the left:

X-42-(4X)=0

We add all the numbers together, and all the variables

-3X-42=0

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

-3X=42

X=42/-3

X=-14

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