ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Functions Videos 43 videos
Don’t even think about starting up your combo lemonade/fro-yo stand without first making sure you understand piecewise functions. You’re just a...
ACT Math: Intermediate Algebra: Drill 5, Problem 1. What does g(f(x)) equal?
CAHSEE Math 5.5 Algebra and Functions 266 Views
Share It!
Description:
Algebra and Functions: Drill Set 5, Problem 5. Solve the equation.
Transcript
- 00:03
And here's your shmoop du jour.
- 00:05
Solve the equation 9x - 18 = 72 for x.
- 00:10
And here are the potential answers...
- 00:12
Before we spoil the ending, hit pause and try to solve it yourself.
- 00:16
This is a straightforward algebra problem that we can solve in two steps.
Full Transcript
- 00:20
Get x on one side by adding 18 to both sides...
- 00:23
...and we get 9x = 90. Next, get x all by itself...
- 00:28
...by dividing both sides by 9.
- 00:31
90 divided by 9 is 10 and voila...
- 00:33
...the answer is D.
- 00:35
That didn't take long.
Related Videos
CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.
We don't like knocking people down to size, but we do like simplifying radicals. Join us?
If fleeing criminals always fled the scene of the crime at perfect right angles, it would be much easier to determine their whereabouts. Fortunatel...
Okay, so this probably isn't going to help you master Pokemon Go, but game theory can be applied to all sorts of situations. Even stomping your old...