2007-12-20 10:01:20 · 4 answers · asked by mattttt 1 in Science & Mathematics ➔ Mathematics
Do you want to solve for x and y? Let's use substitution. We'll substitute the (-2x+2) for the y in the other, second equation:
6x + 2(-2x+2) = 3
6x -4x +4 = 3
2x = -1
x = -1/2
now, put (-1/2) back in the first equation to get y:
y = -2(-1/2)+2 = 1 + 2 = 3
There ya go! :)
2007-12-20 10:05:54 · answer #1 · answered by Marley K 7 · 1⤊ 0⤋
y=-2x +2 2y=-6x +3
(3y=-6x+6) - (2y= -6x+3)
y=3
then subsitiute 3 into the formula
x=- 0.5
2007-12-20 10:11:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
solve by substitution
y=-2x+2
6x+2y=3
6x+2(-2x+2)=3
6x-4x+4=3
2x+4-4=3-4
2x=-1
x=-1/2
y=-2(-1/2)+2
y=1+2
y=3
2007-12-20 11:12:39 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
what is your question i don't get it.
2007-12-20 10:05:50 · answer #4 · answered by $$$$$$$$$$$$$ 2 · 0⤊ 1⤋