2007-10-10 19:10:52 · 7 answers · asked by alex 1 in Science & Mathematics ➔ Mathematics
3 = 9x - 2x
3 = 7x
x = 3/7
2007-10-10 19:14:57 · answer #1 · answered by SVAL 4 · 1⤊ 0⤋
Take the 9x and subtract by 2x leaving 7x
7x =3 therefore ansywer = 3/7
2007-10-11 02:16:08 · answer #2 · answered by ThE RiDdLeR 3 · 0⤊ 1⤋
First put variables in a side and other constants in other side
2x-9x = -3
-7x = -3
7x = 3
x = 3 / 7
2007-10-11 10:35:09 · answer #3 · answered by Rayan Ghazi Ahmed 4 · 0⤊ 0⤋
Move the terms with (x) one side of (=) and the terms without (x), the other side
2x-9x=-3 When you move a term the other side of (=) you have to change the sign ... + becomes - and - becomes +
-7x=-3
x=3/7
2007-10-11 02:40:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
2x + 3 = 9x
-2x = 9x-2x
3 = 7x
x = 3/7
2007-10-11 02:14:43 · answer #5 · answered by Sandra R 1 · 1⤊ 1⤋
3 = 7 x
x = 3 / 7
2007-10-11 03:15:52 · answer #6 · answered by Como 7 · 0⤊ 0⤋
3=7x
x=7/3
2007-10-11 02:14:23 · answer #7 · answered by katia 1 · 1⤊ 3⤋