Can you solve. 6> - 5x + 5 or 8 < - 4x + 3?

2009-06-27 6:16 am

回答 (4)

2009-06-27 6:22 am
✔ 最佳答案
6> - 5x + 5
6-5 >-5x +5-5 subtract 5 from each side
1> -5x
1/-5 >-5x/-5 divide each side by -5
-1/5 < x when you divide by a - number, then the sign will change
and if you want to put the x first, then you switch the sign again
x > -1/5


8 < - 4x + 3
8-3 < -4x +3-3
5 < -4x
-5/4 >x
x < -5/4
2009-06-27 5:14 pm
6 > -5x + 5 -- or -- 8 < -4x + 3
6 - 5 > -5x -- or -- 8 - 3 < -4x
-5x < 1 -- or -- 5 > -4x
x > 1/(-5) -- or -- x > 5/(-4)
x > -1/5 (-0.2) -- or -- x < -5/4 (-1.25)
2009-06-27 2:14 pm
6 > - 5 x + 5
5 x + 6 > 5
5x > - 1
x > -1/5

4x + 8 < 3
4x < - 5
x < - 5/4
2009-06-27 1:22 pm
what is the question??

6>-5x+5=1>-5x True

8<-4x+3=5<-4x True...

I dont understand what the question was...
2009-06-27 1:21 pm
x > -1/5

x < -5/4

good luck


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