Jawabanmu

2014-02-09T17:56:28+07:00
2-z=z-3
2+3=z+z
5=2z
5/2=z
2,5=z
bener nggak?
2014-02-09T18:05:19+07:00
2 - z = z - 3 -z - z = - 2 - 3 -2z = - 5 -2z ÷ -2 = -5 ÷ -2 z = 2,5 Maaf jika salah.. Semoga membantu..