Jawabanmu

2014-08-05T20:08:47+07:00
X + y + z =36
11 + 12 +13 = 36

x + 14 = y + z
11 + 14 = 12 + 13



2014-08-05T23:33:27+07:00
2x+14=36
2x      =36-14
2x      =22
x        =11