Saturday

July 26, 2014

July 26, 2014

Posted by **anthony** on Thursday, December 4, 2008 at 7:02pm.

[6-2x]<4

which is the numeral set for [2x-]<5

1.[x]-4<x<1]

2.{x]x<-4orx>1}

3.{x]-1<x<4}

4.{x]x<-1orx>4}

- math -
**Cianán**, Thursday, December 4, 2008 at 8:08pmYou can treat greater than and less than signs kind of like equals signs by you can multiply both sides by a number and not change the result or add the same thing to both sides and not change the result.

The only thing you have to be careful about is when you multiply by -1 as the direction of the > or < changes.

Now:

6 - 2x < 4

- 2x < 4 - 6

- 2x < -2

When I multiply both sides by -1 the less than becomes a greater than.

2x > 2

x > 1

If you want the reason why the direction changes reply back to this.

Ok, part 2:

2x < 5

therefore x < 5/2

x < 2.5

1: -4<x<1 This interval is on the above interval

2: x<-4 or x>1 doesn't as x can't be larger than 2.5 so x>1 fails.

3: -1<x<4 doesn't work as 4 is > 2.5

so it fails

4: x<-1 or x>4 doesn't work as x>4 fails as x cannot be greater than 2.5

Ok, hope that helps!

**Related Questions**

math b - i need help with these problems please [6-2x]<4 which is the numeral...

Math - I need help to set the equation up to solve a system to ensure that I get...

math - please help I have no ideal how to do this convert the numeral to a ...

math - 4 digit number. numeral in tens place 3 times the numeral in hundreds ...

Math - write numeral as hindu- arabic numeral _ XMMDCLXII

math - I need the answers to the why did the banana go out with the prune ...

explorations in math - convert the numeral to a numeral in base 10 14 5

math - convert the numeral to a numeral in base 10

math - convert the numeral to a numeral in base 10 13 5

math - convert the numeral to a numeral in base 10 43 5