Jawabanmu

2014-07-19T01:26:04+07:00
2x+3y = 4...i
4x+6y =12...ii

i
2x+3y=4
x = 2-3y/2 *subtitusi ke ii

4x-6y=12
4(2-3y/2) -6y =12
8-6y-6y =12
-4 = 12y
-3/4 =  subtitusi ke 1

2x+3(-3/4) =4
2x -9/4 =4
2x = 25/4
x = 25/8

^_^