can you show your work so i can understand it? thanks
8(x - 2) = 5(x + 4)
2007-09-18 01:16:41 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
omg another one
|3x - 2| + 7 = 15
thanks sososso much for your help
2007-09-18 01:21:38 · update #1
Question 1
8x - 16 = 5x + 20
3x = 36
x = 12
Question 2
| 3x - 2 | = 8
3x - 2 = 8
3x = 10
x = 10/3
OR
3x - 2 = - 8
3x = - 6
x = - 2
2007-09-18 04:43:49 · answer #1 · answered by Como 7 · 2⤊ 0⤋
8(x - 2) = 5(x + 4)
expand - 8*x - 8*2 = 5*x + 5*4
= 8x - 16 = 5x + 20
bring x to one side and numbers to other
8x-5x = 20+16
3x = 36
x=36/2 = 12
2007-09-18 08:22:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
sure:p watch out:
8(x-2) = 5(x+4)
8x -16 = 5x + 20 / +16
8x = 5x + 36 / -5x
3x = 36
x = 12
8(12-2) = 5(12 + 4)
8 * 10 = 5 * 16
80 = 80
2007-09-18 08:21:30 · answer #3 · answered by ari 1 · 0⤊ 0⤋
8(x - 2) = 5(x + 4)
8x -16 = 5x + 20
3x = 36
x = 12
2007-09-18 08:20:40 · answer #4 · answered by Bananaman 5 · 0⤊ 0⤋
8(x - 2) = 5(x + 4)
8x - 16 = 5x + 20
8x - 5x = 20 - -16
3x = 20+16
3x = 36
x = 12
2007-09-18 08:19:38 · answer #5 · answered by Pakyuol 7 · 0⤊ 0⤋
8x-16=5x+20
3x=36
x=12
|3x - 2| + 7 = 15
|3x-2|=8
|3x|=6
x=2
2007-09-18 08:20:58 · answer #6 · answered by Rockstar Z 2 · 0⤊ 0⤋
8(x-2) = 5(x+4)
Multiply it out first:
8x - 16 = 5x + 20
Then subtract 5x from each side and add 16 to each side:
3x = 36
Then divide each side by 3:
x = 12
2007-09-18 08:22:32 · answer #7 · answered by remowlms 7 · 0⤊ 0⤋
8x - 16 = 5x + 20
3x = 36
x = 12
2007-09-18 08:27:14 · answer #8 · answered by Anonymous · 0⤊ 0⤋
8(x-2) = 5(x+4)
8x-(8.2) = 5x + (5.4)
8x-16 = 5x+20
8x-5x=20+16
3x = 36
x = 36 : 3
x = 12
pretty easy, right?
what grade are you?
2007-09-18 08:22:23 · answer #9 · answered by redlovagurl 2 · 0⤊ 0⤋
8(X-2)=5(X+4)
5X8=40 (X-2)? (X+4)?
X=7 X=4
8(7-2)=5(4+4)
8(7-2)=40
5(4+4)=40
I THINK THIS IS THE RIGHT ANSWER IT ALL ADS UP RIGHT AND I THINK THIS IS THE LOWEST ANSWER TO
2007-09-18 08:32:24 · answer #10 · answered by teri b 2 · 0⤊ 0⤋