Jawapan

2016-03-07T12:43:49+08:00
2016-03-07T13:47:16+08:00
Find x,
3 + 5(x) + 16 -2xy
3 + 5(x) + 16 -2xy=0
3 + 16 + 5x -2xy=0
19=2xy-5x
19=x(2y-1)
19/(2y-1)=x
x=19/(2y-1)#