2006-09-07 12:56:44 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5
Edit: or 8, if "minus twice the number plus one" is interpreted to mean -2(n+1) instead of -2n+1. Of course, the reason mathematical notation exists is to avoid such ambiguities.
2006-09-07 12:58:58 · answer #1 · answered by Pascal 7 · 1⤊ 0⤋
5
2006-09-07 13:06:15 · answer #2 · answered by jediruszkai 2 · 0⤊ 0⤋
5
2006-09-07 13:02:40 · answer #3 · answered by Wise ol' owl 6 · 0⤊ 0⤋
You question is ambiguous:
do you mean
1/ Three times a number minus twice (the number plus one) is six.
or do you mean
2/ Three times a number minus (twice the number) plus one is six
let's call the unknown number "A"
if the problem is the problem 1/ we have
3xA - 2x(A+1)=6
which can be re-written 3xA -2xA-2=6
which means A-2=6 and then A=8
if the problem is the problem 2/ we have
3xA - 2xA+1=6
which means A+1=6 and then A=5
2006-09-07 13:07:02 · answer #4 · answered by cd4017 4 · 0⤊ 0⤋
you've x + y + z = sixty six. you also know y = 2x, and y = z - 6. So 2x = z - 6, which says z = 2x + 6. putting this at the same time: x + 2x + 2x + 6 = sixty six, so 5x = 60 and for this reason x = 12. (So y = 2x = 24, and z = y + 6 = 30.)
2016-11-25 19:49:37 · answer #5 · answered by ? 4 · 0⤊ 0⤋
3x - 2x + 1 = 6
x + 1 = 6
x = 5
The numbers is 5
2006-09-07 13:32:56 · answer #6 · answered by Sherman81 6 · 0⤊ 0⤋
3x-2x+1=6
x+1=6
x=5
2006-09-07 13:00:27 · answer #7 · answered by hannan 3 · 0⤊ 0⤋
3x-2x+1=6
x+1=6
x=6-1
x=5
2006-09-07 13:04:30 · answer #8 · answered by cookiemunstr21 2 · 0⤊ 0⤋
3X-2X + 1 =6
1X + 1=6
x= 6-1
X=5
the answer is 5!!!
2006-09-07 13:06:15 · answer #9 · answered by odoiii 2 · 0⤊ 0⤋
Five [5, cinco, funf]
2006-09-07 13:00:19 · answer #10 · answered by Bummerang 5 · 0⤊ 0⤋