1. 3x=6y+4
2.4x=4+2y
3.4x+5y=6
2006-12-17 11:24:21 · 4 answers · asked by jms7694 1 in Science & Mathematics ➔ Mathematics
Rearrange to make y the subject
e.g.
3x = 6y + 4
So 6y = 3x - 4
so y = (3x - 4)/6
Note: In the second one I recommend dividing through by common factors first.
2006-12-17 11:28:09 · answer #1 · answered by Tom :: Athier than Thou 6 · 0⤊ 0⤋
1. 3x=6y+4 subtract 4 from each side
3x-4=6y divide by y
y=x/2-2/3
2.4x=4+2y subtract 4 from each side
4x-4=2y divide by 2
y=2x-2
3.4x+5y=6 subtract 4x from each side
5y=-4x+6 dicide by 5
y=-4x/5+6/5
2006-12-17 19:46:45 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
1.) 3x-4=6y
(3x-4)/6=y
2.) 4x=4+2y
4x-4=2y
(4x-4)/2=y
3.) 4x+5y=6
5y=6-4x
y=(6-4x)/5`
2006-12-17 19:34:38 · answer #3 · answered by somebody ms 1 · 0⤊ 0⤋
Act as if 3x was a number
Ana
2006-12-17 19:26:30 · answer #4 · answered by Ilusion 4 · 1⤊ 0⤋