ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Linear Inequalities Videos 13 videos
When graphing inequalities, you graph the line, shade the corresponding side, and plug in the point. The end!
No, these are not inequalities that have been convicted and imprisoned inside a maximum security prison. Although some of them do have quite a rap...
Algebra I Drill 3 Problem 2. How did Sandy change the inequality?
SAT Math 8.2 Algebra and Functions 175 Views
Share It!
Description:
SAT Math 8.2 Algebra and Functions
Transcript
- 00:03
Here’s your shmoop du jour, brought to you by simple equations.
- 00:06
Such as…you plus Netflix plus Papa John’s equals a depressing Saturday night.
- 00:14
Five less than six times a number is equal to 20 more than the number. What is the number?
- 00:22
Okay, this is just one of those “turn words into numbers” type problems.
- 00:26
We can’t find our magic scepter at the moment,
Full Transcript
- 00:28
so we’re going to have to do this one manually. We’re told that we’re looking for a mysterious
- 00:34
number…so we’ll just label this variable x.
- 00:36
Five less than six times a number… or 6x minus 5.
- 00:41
20 more than the number is just 20 plus x. So our equation is:
- 00:46
6x - 5 = 20 + x. All right, Combine like terms...
- 00:51
...so divide both sides by 5 and we get x = 5.
- 00:56
And that’s our answer.
Related Videos
SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?
In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...
Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...