Solving Inequalities - YourTeacher.com - Algebra Help

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Uploaded by on Mar 24, 2008

For a complete lesson on solving inequalities, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that when solving an inequality, such as --3x is less than 12, the goal is the same as when solving an equation: to get the variable by itself on one side. Note that when multiplying or dividing both sides of an inequality by a negative number, the direction of the inequality sign must be switched. For example, to solve --3x is less than 12, divide both sides by --3, to get x is greater than -4. And when graphing an inequality on a number line, less than or greater than means an open dot, and less than or equal to or greater than or equal to means a closed dot.

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  • this dude really helps me thumbs up if it is the same for you

  • if he can explain that in 2:52, then why does my teacher have to stand infront and explain it for like whole hour?

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  • This guy here is my new teacher.

  • @qbjdog Because a classroom is not a place to learn, learning must be done on your own time, and own studying. in your own environment.

  • @bruceleelukalike Im In 6th XD

  • I know, my teacher explained it to me over and over again and finally knew how to do it, but when this guy explained for just 2:52, it felt like i was in elementary. Its really easy.THANKS MAN!!

  • U R A GREAT TUTOR!!!

  • @kimandrea8998 Thats because most teachers dont know what the heck their taking about thumps up if u agree

  • look at how he does the x's so different in the UK!

  • @kimandrea8998 maybe because the other idiots in the class didn't let him?

  • I DIDN'T GET ANY SINGLE THING!!!!

  • @TheMagicalPuffBunny Yup it's just a small unit of pre-algebra. I remember doing that in elementary too. Later, you'll see it again, but you'll do more difficult problems.

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