2006-11-04 13:40:03 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
6x-7 = 15x-6x
15x-6x-6x = -7
3x= - 7
x= - 7/3
= - 2.333
2006-11-04 13:49:18 · answer #1 · answered by Anonymous · 1⤊ 0⤋
6x--7=15x-6x
since the double subtraction sign makes a positive we do the following:
6x+7=15x-6x
6x-6x+7+9x then subtract 6x from both sides
7/3=3x/3
x=7/3 and youre done!!!
2006-11-04 13:52:10 · answer #2 · answered by funkucla!!! 3 · 0⤊ 0⤋
6x--7=15x-6x
6x + 7 = 9x
6x - 9x + 7 = 0
-3x + 7 = 0
-3x = -7
3x = 7
x = 7/3
2006-11-05 01:37:43 · answer #3 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
6x- -7=15x-6x
6x+7=9x
-3x=-7
x=7/3
2006-11-05 12:17:34 · answer #4 · answered by Phy A 5 · 0⤊ 0⤋
6x + 7 = 9x
7 = 3x => x = 7/3
2006-11-04 14:30:13 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Wow congratulations all of you guys can do grade 9 basic algebra yay your less then mediocre since you posted the wrong answer all of you. If no one noticed its 6x--7 or 6x-(-7) OR 6x+7 sorry no one caught that on which means all your answers are wrong sorry! x=7/3 sorry to break the hard news
2006-11-04 13:53:45 · answer #6 · answered by Anonymous · 0⤊ 1⤋
6x - - 7 = 15x - 6x
6x + + 7 = 9x
-6x -6x
7 = 3x
7/3 = x
2006-11-04 15:23:50 · answer #7 · answered by colostomybag4fun1 2 · 0⤊ 0⤋
6x--7=15x-6x
6x+7=9x
3x=7
x=7/3=2 1/3=2.333.......
2006-11-04 15:52:46 · answer #8 · answered by yupchagee 7 · 0⤊ 0⤋
6x-7=9x
3x=-7
x=-7/3
2006-11-04 13:42:34 · answer #9 · answered by . 3 · 0⤊ 0⤋
6x-7=15x-6x;
6x+6x-7=15x;
-7=15x-12x;
x=-7/3
2006-11-04 13:45:40 · answer #10 · answered by Syed R 2 · 0⤊ 0⤋