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Pre-Algebra Videos 34 videos
ACT Math: Pre-Algebra Drill 1.2. What proportion of Jenna's day is spent Wii-swimming?
ACT Math Pre-Algebra Drill 1, Problem 3. Can you find the product of two square roots?
ACT Math 7.1 Pre-Algebra 407 Views
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Description:
ACT Math: Pre-Algebra Drill 7, Problem 1. Solve for x.
Transcript
- 00:03
Try this shmoop on for size...
- 00:06
Solve for x: 2x minus 1 over 3 equals negative 4x.
- 00:10
And here are the potential answers...
- 00:14
OK so what is this question asking?
- 00:16
Well, it's just a fancy fraction question.
Full Transcript
- 00:19
First things first -- let's get rid of the fraction part.
- 00:22
Multiply both sides by 3 to get 2x minus 1 equals negative 12 x
- 00:27
Add 12x to both sides to get 14x minus 1 is zero.
- 00:33
Add 1 to both sides to get 14x equals 1
- 00:36
Divide both sides by 14 to get x equals 1 over 14.
- 00:40
Answer D.
- 00:42
As in, "Debonair."
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