I am having trouble with coming up with an answer. I am just getting really confused. Can someone help me PLEASE. I am just starting back to college and having trouble. I am going to ask for help monday. but I have to get this problem done before then.
3x+2y=-6
thanks to all that help
2007-09-15 15:06:17 · 6 answers · asked by Joe K 1 in Education & Reference ➔ Homework Help
Well, suppose you want x and y to be isolated, and one expressed in terms of the other. That's pretty much the only thing that can be done to this equation. It cannot be 'solved' as infinite values of x and y will satisfy this equation.
Isolating x:
3x + 2y = -6
3x = - (2y + 6)
x = - (2y + 6)/3
x = -2(y + 3)/3
Isolating y:
2y + 3x = -6
2y = - (3x + 6)
y = - (3x + 6)/2
y = -3(x + 2)/2
For example, x = 0 and y = -3 is one solution. x = -2 and y = 0 is another. Like that, there are infinite solutions.
2007-09-15 15:18:53 · answer #1 · answered by Akilesh - Internet Undertaker 7 · 1⤊ 0⤋
I don't know if this is right or not, but wouldn't you have to find a number for x and y that add up to a -6? My thoughts:
3x+ 2y = -6
3(-2) +2(0) = -6
-6 +0 = -6
-6 =-6
You could reverse it, if it's right, and use 0 for x and -3 for y.
2007-09-15 15:35:16 · answer #2 · answered by jan51601 7 · 0⤊ 0⤋
simplify it.. to the y = mx + b formula
minus both sides by 3x ... 2y = -3x - 6
divide both sides by 2 ... y = -3/2x - 3
2007-09-15 15:17:42 · answer #3 · answered by lil_blue 3 · 0⤊ 0⤋
I am doing this... i am in 8th grade.
I believe it is
3x-2+2x0=-6
2007-09-15 15:18:33 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I believe that you can only simplify it.
I hope this website can help you:
http://www.webmath.com/index4.html
2007-09-15 15:14:15 · answer #5 · answered by Anonymous · 0⤊ 0⤋
well u can't combine any like terms, so that's the answer. there's nothing you can do to it.
2007-09-15 15:12:32 · answer #6 · answered by sunshine 2 · 0⤊ 0⤋