maths_arghh234
Junior Member
- Joined
- Nov 8, 2009
- Messages
- 52
okay so .. i've been given a AS level paper and we went through the first 2 questions in class only on part d onwards he was going too fast and i couldn't read his writing it's finding the coordinates of a point on a graph using simultaneuos equations .. i could read his answers (i think anyway ) what he had was y=5 x=2
and the equations =
1) y+2x=9
2) 2y -x =8 i tried the first part to find y and keep coming up with 0.42.... and then breaking down ...please help me ..this was one of the things i thought i COULD do
..i know i've just writen a stats problem up but i was doing this just to keep working .
my working out is like this
1) y+2x=9
2)2y-x=8 <----x2 =3) 4y-2x=16
3)-1)
= 3y = 7 or -3y=-7 and then that comes up with 0.42... or - 0.42.....
and the equations =
1) y+2x=9
2) 2y -x =8 i tried the first part to find y and keep coming up with 0.42.... and then breaking down ...please help me ..this was one of the things i thought i COULD do
..i know i've just writen a stats problem up but i was doing this just to keep working .
my working out is like this
1) y+2x=9
2)2y-x=8 <----x2 =3) 4y-2x=16
3)-1)
= 3y = 7 or -3y=-7 and then that comes up with 0.42... or - 0.42.....