Jawabanmu

2014-04-03T18:33:43+07:00
4x-3y=23....(kali 4)....16x-12y=92
6x+4y=-8.....(kali 3)....18x+12y=-24

16x-12y=92
18x+12y=-24
(ditambah)
34x=68
x=2

4x-3y=23
4.2-3y=23
8-3y=23
-3y=23-8
-y=15/3
y=-5

3x-y
=3.2-(-5)
=6+5
=11

jadi jawabannya 11


2014-04-03T19:07:29+07:00