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Which equation has no solution?
|4x - 2| = - 6, |-2 - x| = 9, |3x + 6| = 6, |-2x + 8| = 0

User Broschb
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1 Answer

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Answer: |4x-2|=-6 has no solutions.

This is because the absolute value equation is equal to a negative value. This cannot occur because absolute value is the distance from 0, and distance is always a positive measurement. Thus, absolute value always produces a positive output. For example, if we were to find the absolute value of 6, it would look like:

|x|=6

So, x must be two numbers that are 6 units from 0; there is a positive and negative value, but the negative value turns positive since there is no negative distance.

Thus, we’d know that x=-6, 6 because |-6|=6 and |6|=6, so -6 is 6 units from 0 and 6 is 6 units from 0.

However, what if we said the absolute value of a number, x, must equal -6? Well, here’s what happens:

|x|=-6

|-6|≠-6 and |6|≠-6

So, there are no solutions to this equation because distance can’t negative. There is no value that is -6 units from 0.
User IAdapter
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