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19 votes
19 votes
Absolute values are what I am having an issue with

Absolute values are what I am having an issue with-example-1
User NirMH
by
2.3k points

1 Answer

12 votes
12 votes

ANSWER:

No solution in real numbers

Explanation:

We have the following equation:


-7-7\mleft|-2x+9\mright|=28

We solve for x as follows:


\begin{gathered} -7\mleft|-2x+9\mright|=28+7 \\ |-2x+9|=(35)/(-7) \\ |-2x+9|=-5 \\ x=\text{ no solutions} \end{gathered}

Since the absolute value is always positive, the equation loses its meaning since it is equal to -5, which is not possible.

Which means that there is no solution for x in the real numbers.

User Ddavison
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3.3k points