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-5x + 1 > 11?
Can someone please show me how to complete this?
17 Answers
- сhееsеr1Lv 71 decade agoFavorite Answer
-5x + 1 > 11
+5x +5x
1 > 11 + 5x
1 > 11 + 5x
-11 > -11
-10 > 5x
-10 > 5x
---- -----
2 2
-2 > x
or: x < -2
- Anonymous1 decade ago
Well it is hard to show on a computer. But I'll try! Okay you would do -1 on the +1 and > 11 side. Now 1 and 1 cancel each other out so the +1 is gone and 11-1=10. Now you have -5x>10 . So it is multiplication now (-5 x X) So you would -5 /-5 (divide). It cancels itself out. Then 10/-5=-2
Answer: x > -2
Source(s): I <3 Math - 1 decade ago
- 5x + 1 > 11
- 5x + 1 - 11 > 0
- 5x - 10 > 0
- ( 5x + 10) > 0
5x + 10 < 0
5x < - 10
x < -2
x belongs to (- infinity to - 2)
- 1 decade ago
all of the answers where x<-2 are right...but also wrong.. its x<-3..heres why...
when u do the whole problem with x being -2, it comes out as 11>11... and 11 is not greater than 11. the only way x<-2 is if theres a line under the > or < sign in the problem
with x<-3....
(-5 x -3) + 1>11
15+1>11
16>11
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- 1 decade ago
-5x + 1 > 11 =>
-5x > 10 (subtracting 1 from both sides) =>
-x > 2 (dividing both sides by 5) =>
x < -2 (swapping sides)
- Stars:)Lv 41 decade ago
This is sooo basic, and easy, look here
-5x+1=11
now, take 1 to the other side..
-5x=11-1
-5x=10
x=10/-5
x=-2
You can try doing all these type of sums, because these sums are that basics!
- 1 decade ago
Subtract 1 from both sides.
-5x > 10.
Divide by negative 5. Note that you have to flip the sign.
x < -2
