x-7/5+7/5=-x/7
And can you please show me how you solved it.
2007-10-06 15:30:41 · 4 answers · asked by Wonderer 1 in Science & Mathematics ➔ Mathematics
1. 7/5 and -7/5 cross each other out
x = -x/7
2. multiply the right side by 7 to get rid of the fraction, whatever you do to one side you have to do to the other
(7)x = -x/7(7)
7x = -x
3. move the x over to the left
7x = -x
+x +x
8x = 0
4. divide both sides by 8
8x/8 = 0/8
x = 0/8
5. 0/8 is 0 so therefore...
x=0
2007-10-06 15:52:18 · answer #1 · answered by Anonymous · 0⤊ 0⤋
x=0
2007-10-06 22:37:57 · answer #2 · answered by Zyxel 3 · 0⤊ 0⤋
-7/5 and 7/5 cancels out
so you're left with x=-x/7
multiply both sides by 7:
7x=-x
8x=0
divide both sides by 8:
x=0/8
which is the same as x=0
good luck. =]
2007-10-06 22:36:00 · answer #3 · answered by asdfjkl; 2 · 1⤊ 0⤋
x = -x/7
x + x/7 = 0
8x/7 = 0
It looks like x = 0
2007-10-06 22:34:35 · answer #4 · answered by Steve B 6 · 1⤊ 0⤋