q/12 - (q-2)/4
In other words: q over 12 minus (q-2) over 4
LCD = 12
I got as far as -2q+6 / 12
The answer in the book is -q+3 / 6 - how do I simplify the above to get there?
Thanks!
2007-11-21 09:06:42 · 5 answers · asked by sbsurfr78 1 in Science & Mathematics ➔ Mathematics
You don't just divide by 2, as the misinformed/immature tennis player stated above. You must first factor out the 2 from -2q+6, which leaves you with 2(-q+3), then divide the denominator, 12, by the factored 2.
2007-11-21 09:49:35 · answer #1 · answered by Anonymous · 0⤊ 0⤋
-2q+6 / 12
= 2(-q+3) / 2(6)
= (-q+3) / 6
2007-11-21 17:11:22 · answer #2 · answered by J D 5 · 1⤊ 0⤋
q/12 - (q-2)/4
q/12 -[(q-2)/4](3/3)
q/12 - 3(q-2)/12
[q - 3(q-2)]/12
[q - 3q + 6]/12
[-2q +6]/12
2[-q + 3]/12
(-q + 3)/6 ANS
teddy boy
2007-11-21 17:19:38 · answer #3 · answered by teddy boy 6 · 1⤊ 0⤋
you factorized with 2
2(-q+3)/12 = (-q+3)/6
2007-11-21 17:12:14 · answer #4 · answered by norman 7 · 1⤊ 0⤋
q/12-(q-2)/4
12 is lcd
q-3(q-2)
q-3q+6
-2q+6/12
divide both sides by 1/2
-q+3/6
2007-11-21 17:17:02 · answer #5 · answered by Dave aka Spider Monkey 7 · 0⤊ 1⤋