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ACT Math 7.4 Pre-Algebra 347 Views


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Description:

ACT Math: Pre-Algebra Drill 7, Problem 4. Solve for x.

Language:
English Language

Transcript

00:03

Hello boys and girls it's Howdy Shmoopy time!

00:08

Solve for x: Absolute value of

00:10

X -1 over 2 equals -2

00:13

And here are the potential answers....

00:19

Okay, so what is question asking? Well it's an absolute value problem, yeah.

00:23

These vertical line thingies that look like prison bars, except you're the one

00:28

forced to solve this problem. Those numbers are free to come and go as they please.

00:34

The trick to this question is just remembering that absolute value symbols

00:37

make everything inside them

00:39

positive. It means that we can just ignore the stuff inside the absolute value

00:43

things here.

00:43

And use good old common sense to realize that no x can ever make the left side equal -2

00:50

So the solution is that there's no solution.

00:53

Answer E. As in "Ex-con".

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