Posted by **landry** on Thursday, March 21, 2013 at 12:23am.

(x-3)/(x+1) > 5

i solved and got x < -2

but this is not right once you plug it in. please help.

- inequality- why is this wrong? -
**black_widow**, Thursday, March 21, 2013 at 2:41am
it should be x>-3

- inequality- why is this wrong? -
**Steve**, Thursday, March 21, 2013 at 12:27pm
Not so. If x=-5/2, y=11/3 < 5

(x-3)/(x+1) > 5

if x > -1,

x-3 > 5(x+1)

x-3 > 5x+5

-8 > 4x

x < -2

but, we assumed x > -1, so that's a no-go

If x < -1,

x-3 < 5(x+1)

x-3 < 5x+5

-8 < 4x

x > -2

So, we have -2 < x < -1

- inequality- why is this wrong? -
**black_widow**, Friday, March 22, 2013 at 8:52am
opps sorry made some calculation mistakes....

## Answer This Question

## Related Questions

- Check my math please ASAP - If im not right then can you tell me which are wrong...
- Alegra - Suppose that a spreadsheet contains the following values. A1 6 B1 -4 C1...
- Algebra - I solved (2x-8)/z=y, and got 2yz-8=x as an answer, which my teacher ...
- physics - I solved the first question and got the right answer, but I just can't...
- calculus; implicit differentiation - Use implicit differentiation to find the ...
- cacl - integral of x^3+65/X^+7x+12 dx when i solved i got x^2/2-7x+64ln(x+4)-...
- AP Chemistry - Hey guys! Stuck on another one: The reaction 2N2O(g) 2N2(g) + O2...
- Maths - There was a question: A gallon jug of milk is 3/4 full. After breakfast...
- Force between Charged Spheres (Physics 11th Grade) - What is the force between ...
- Algebra! Errr, whatever it is. - Which is J = rb solved for r? a. r = j/4b b. r...

More Related Questions