Jawapan

2015-05-02T21:56:31+08:00
4x-8-7=x 4x-x=15 3x=15 x=5
1 3 1
2015-05-02T22:07:29+08:00
4x - 8 - 7= x
4x - 15 = x
4x - x = 15 
3x=15
x=15 bahagi 3
x = 5


1 4 1