Question

What's the extraneous solution for |x-9|=4x

Answer 1

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Answer 2

Answer:

x = -3

Step-by-step explanation:

An extraneous equation is just an equation that you can solve, but the answer won't work when you check it.

x - 9 = 4x

-3 - 9 = 4(-3)

|-12| $\neq$ -12