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Systems of Equations Videos 73 videos

Solving Systems of Linear Inequalities
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CAHSEE Math 3.2 Algebra I 192 Views


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Description:

Algebra I Drill 3 Problem 2. How did Sandy change the inequality?

Language:
English Language

Transcript

00:03

And here's another shmoop du jour.

00:05

In order to solve the inequality negative three-halves times 3x minus 5 is greater than 6...

00:11

…the first thing Sandy did was change the inequality to 3x - 5 is less than -4.

00:18

She accomplished this by doing… what?

00:23

And here are the potential answers…

00:30

This one is pretty straightforward – just look at the very first term –

00:34

we’re gonna want to multiply that negative 3 halves thing by 3x…

00:39

Well, in the rewrite she clearly got rid of that ugly prefix.

00:43

How? She just multiplied by the reciprocal of negative 3 halves or negative 2 thirds

00:50

and just condensed the left side to be 3x-5….

00:54

The right side then became 6 times negative 2/3 or … negative 4 cutely circled here.

00:58

Answer: D. As in, "Done."

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