2007-05-28 10:54:13 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
-3x=9y I just added 9y to both sides
9y=-3x I just switched places of x and y--this is okay to do
y=-3/9x I just divided both sides by 9.
2007-05-28 10:58:48 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
Take the equation and add the 9y to the right side:
-3x = 9y
Now divide by 9 on each side:
-3x/9 = y, or y = -x/3
*NOTE: gordon is wrong because he brought the one value to the other side without changing its sign.
2007-05-28 17:57:47 · answer #2 · answered by C-Wryte 3 · 0⤊ 0⤋
-3x-9y=0 add 3x to each side
-9y=3x divide both sides by -9
y=-x/3
2007-05-28 18:06:34 · answer #3 · answered by yupchagee 7 · 0⤊ 0⤋
-3x-9y=0
+3x =+3x
-9y=3x
/-9 =/-9 (that is divide by -9)
y = -x/3
2007-05-28 17:59:36 · answer #4 · answered by wowzers 2 · 0⤊ 0⤋
-9y=-3x brign the -3x over then divide by (-9)
y= 3x/9 negatives channcel each other out
y=x/3 put into simplist form
2007-05-28 17:57:29 · answer #5 · answered by gordon_benbow 4 · 0⤊ 0⤋
42
Geez do your own math homework. What do you ever learn from cheating!!!!!!
2007-05-28 18:03:03 · answer #6 · answered by shadow_watt 3 · 0⤊ 0⤋