algebra question?

1 ⤊

solve the following equation for x
/-8x -6/ = /3x +2/

2007-02-05 04:03:20 · 3 answers · asked by dan b 1 in Science & Mathematics ➔ Mathematics

3 answers

Melodies answer is flawed because -8x -3x does not equal 5x
uahgrads answer is half right x=-8/11 is one answer.
But you also have to examine the possibility that
(-8x-6) = -(3x+2) which gives the second answer of x=-4/5

2007-02-05 04:22:27 · answer #1 · answered by kinvadave 5 · 0⤊ 0⤋

-8x-6 = 3x+2
-3x -3x

5x-6= 2
+6 +6
5x = 8

Therefore, x = 8/5

2007-02-05 12:07:09 · answer #2 · answered by Hannah 3 · 0⤊ 1⤋

square both sides to get 64x^2+96x+36 = 9x^2+12x+4
=> 55x^2+84x+32=0
=>(11x+8)(5x+4)=0
=>x= -8/11 or x= -4/5

2007-02-05 12:17:33 · answer #3 · answered by RobLough 3 · 1⤊ 0⤋