Please solve: -5x (less than or equal to) -15?

2009-03-25 8:30 am

回答 (14)

2009-03-25 8:33 am
✔ 最佳答案
-3x <= -15
x >= 3
2009-03-25 5:31 pm
-5x ≤ -15
x ≥ -15/-5
x ≥ 3
2009-03-25 4:01 pm
- 5x ≤ - 15

15 ≤ 5x

x ≥ 3
2009-03-25 3:45 pm
it seems this

-5X <= -15

will divide both sides by (-5) to get only the X in one side

X <= 3

Easy, now X may be 3 or more than 3
2009-03-25 3:40 pm
- 5x less than or equal to -15
Divide both sides by -5 we will have
x is less than or equal to 3
2009-03-25 3:39 pm
x ≥ 3
2009-03-25 3:37 pm
-5x<=-15
x>=(-15/-5)
x>=3

when we delete or mutiply, we need to flip the sign
2009-03-25 3:35 pm
x is greater then or equal too 3... -5 divids into 15, 3 times.. you have to switch the less than to greater than because you divided by a negative.. trust me
2009-03-25 3:34 pm
divide -5x and -15 both by -5x and you should get (x=3)
2009-03-25 3:33 pm
You first need to know the value of x.

If it is 5 then that will be a totally different answer than 1.
2009-03-25 3:33 pm
-5x > -15
divide by -5 to both sides

because your dividing by a negative number u flip the signs

so x < 3

x is greater than or equal to 3


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