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Systems of Equations Videos 73 videos
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CAHSEE Math 3.2 Algebra I 191 Views
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Description:
Algebra I Drill 3 Problem 2. How did Sandy change the inequality?
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…
Full Transcript
- 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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