it`s 8 right?
2007-12-09 18:40:19 · 8 answers · asked by RAWRRR.it`s CASEY.♥ 4 in Science & Mathematics ➔ Mathematics
lol. i hate math.
2007-12-09 18:47:12 · update #1
15 = 3x + 3(2x - 4)
2007-12-09 18:50:29 · update #2
Nope. It's -1
-4(-2x-6)=16
divide both sides by 4
-1*(-2x-6)=4
multiply the -1 to the numbers in the parenthesis
2x+6=4
substract 6 on each side
2x = -2
divide by 2
x = -1
2007-12-09 18:44:17 · answer #1 · answered by Sergio__ 7 · 1⤊ 0⤋
-- 4 (-- 2x -- 6) = 16
=> x + 3 = 2
=> x = -- 1
2007-12-10 02:49:01 · answer #2 · answered by sv 7 · 0⤊ 0⤋
x = -1
2007-12-10 02:49:57 · answer #3 · answered by qian 1 · 0⤊ 0⤋
-2x - 6 = - 4
2x + 6 = 4
2x = - 2
x = - 1
Tip
You will never make progress if you keep saying you hate Maths. Try to learn a few basic rules and apply common sense.
You can do it!
2007-12-10 04:00:16 · answer #4 · answered by Como 7 · 1⤊ 0⤋
-4 x 12 = -48
2007-12-10 02:50:49 · answer #5 · answered by gLocEr 2 · 0⤊ 2⤋
-4(-2x-6) = 16
8x+24 = 16
8x = -8
x = -1
Where is your 8 ?
2007-12-10 02:44:20 · answer #6 · answered by Brown Sugar 3 · 1⤊ 0⤋
-2x-6 = 12
-4(12) = -48
2007-12-10 02:43:36 · answer #7 · answered by Quality Post 2 · 0⤊ 4⤋
16=-4(-2x-6)
16=8x+24
16-24=8x
-8=8x
(-8=8x)/8
-1=x
Ok!!!!
2007-12-10 03:47:08 · answer #8 · answered by stanley 2 · 0⤊ 0⤋