Jawapan

2014-07-02T20:29:09+08:00
2+3x = 23

3x= 23 - 2 

3x = 21

x = 21/3 (bahagi)

x = 7
1 5 1
2014-07-02T22:00:41+08:00
Ko nak cari x, jadi kena 'pindah' semua nombor dan asingkan x...

2 + 3x = 23
3x = 23 - 2
3x = 21

x =  \frac{21}{3}

x = 7