Jawabanmu

2014-06-08T10:31:05+07:00
6x + 12 -2x -6 = 0
4x = -6
x = -6/4
x = -3/2
maaf kalau salah
2014-06-08T11:06:02+07:00

3(3x+4)-(2x+6)
=9x + 12 - 2x+6
=7x +18

7x +18 jawabannya