Jawapan

2014-04-14T23:02:39+08:00
5x-2y=6..................equation 1
8x+4y=6.................equation 2
from equation 2
(divide 2)
4x+2y=3
2y=3-4x.......................equation 3
sub equation 3 in 1
5x-3+4x=6
9x=9
x=1

from equation 3
2y=3-4
2y=-1
y=-1/2