Jawapan

2016-06-17T02:29:29+08:00
X-2y=10 --------->x=2y+10 4x+32=10 4(2y+10)+3y=10 8y+40+3y=10 Y=-2.727 Masukkan y itu dlm X=2y+10 X=-5.455
2016-06-17T13:34:21+08:00
3(x-2y)=10 2(4x+3y)=10 3x-6y=30 8x+6y=30 -3x-8x=-30-30 -11x= -60 60=11x 60/11=x X=5.45 // 5/5/11