Saturday

August 2, 2014

August 2, 2014

Posted by **ANON** on Monday, September 10, 2012 at 8:14pm.

8/x-1=9/(x)(x+2)

i know the answer is -1,7 but how?

- math -
**Reiny**, Monday, September 10, 2012 at 8:31pmI subbed your solution values into the equation the way you typed it and neither solution works

they do work if you meant

8/x - 1 = 9/(x(x+2)) ,

so I will start from there

multiply each term by x(x+2)

8(x+2) - x(x+2) = 9

8x + 16 - x^2 - 2x = 9

x^2 -6x -7 = 0

(x-7)(x+1) = 0

x = 7 or x = -1

**Related Questions**

math (algerba 1) Please help! - x+y=0 3x+y=-4 Sovle each system of equation by ...

math - how do i sovle this equation. x/5 = 12/15

math - sovle the linear equation -8.3=x+6.1 Thank you

math - Question: Find the given percent or fraction of the number. 14. 30% of ...

math - sovle: (3x - 2y)^2 The answer is 9x^2 + 4y^2 - 12xy but I do not know ...

Math Help - Sovle w^2-13w+42=0 I get -6,-7 is this correct????

math - x+5y= -3 3x-2y= 8 sovle using substituion

math (algerba 1) - how would you sovle this? multiply: (a + 5) (a - 5)

Algebra - Why is first equation is x negative and in equations 2,3 & 4 answers ...

Math - Did I do this problem correctly? Solve the following system by first ...