2006-06-09 13:04:44 · 11 answers · asked by lovinmymatt 2 in Science & Mathematics ➔ Mathematics
5x - 2y + 4 = 0 (i)
3x + 2y + 12 = 0 (ii)
(i) + (ii)
8x + 16 = 0
8x = -16
wherefore x = -2
sub x = -2 into eq (i)
-10 - 2y + 4 = 0
-6 = 2y
wherefore y = -3
x = -2 y = -3 wherefore your homework is done
2006-06-09 13:10:07 · answer #1 · answered by Mr Hex Vision 7 · 5⤊ 1⤋
48x+16 if you put a space inbetween "3x" and "4" on accident
17x+12 if the "3x" and "4" are being multiplied
8x+16 if it's really (5x-2y+4) + (3x+2y+12)
you just typed it wrong so theres alot of possibilities
2006-06-09 20:12:15 · answer #2 · answered by kaitlin_danette09 2 · 0⤊ 0⤋
I don't believe you people. This is not even an algebraic equation. It isn't even a problem . All you can do is simplify it. The first person who answered it is correct, 48x + 12
-2y and +2y cancel themselves out.
Add 5x and 43x = 48x +12
2006-06-09 22:30:29 · answer #3 · answered by oldman 7 · 0⤊ 0⤋
Is that a 43 in the middle?
if so then
5x-2y+43x+2y+12
=
48x + 12
2006-06-09 20:07:47 · answer #4 · answered by Eric Inri 6 · 0⤊ 0⤋
assuming it is (5x-2y+4) + (3x+2y +12)....you weren't real clear...
then it would be 8x +16
broken down would be 8(x+2)
2006-06-09 20:11:50 · answer #5 · answered by beverflo 2 · 0⤊ 0⤋
add both numbers with the same variables..
5x + 3x = 8x and since the y variable have the opposite signs, it can be cancelled out, the remaining equation is 8x= 16, divide both with 8 so the answer is x= 2
2006-06-09 20:51:11 · answer #6 · answered by Anonymous · 0⤊ 0⤋
5x-2y+4 3x+2y+12
2x+ 4y+ 16 answer
if thats not the answer then i give up
2006-06-09 20:12:32 · answer #7 · answered by Anonymous · 0⤊ 0⤋
There's no 'solution' because there's NO PROBLEM here, just a bunch of variables and a few constants. Everyone who answered is just guessing at what you meant so they're all wrong. Learn english first and then try math.........
2006-06-09 20:21:29 · answer #8 · answered by Steve 7 · 0⤊ 0⤋
No equal sign.
No solving needed.
Thank you very much for the two points!
2006-06-09 20:36:24 · answer #9 · answered by powhound 7 · 0⤊ 0⤋
yeh i agree with drutazo
2006-06-09 20:12:40 · answer #10 · answered by elena d 1 · 0⤊ 0⤋