Jawabanmu

2014-02-03T19:47:24+07:00
6x + 5 = 26 - x
6x + x = 26 - 5
7x = 21
x = 3

x - 12 = 2x + 36
x - (-2x) = 36 - 12
3x = 24
x = 8
2014-02-03T19:50:14+07:00
A)2x=26-6-5
   2x=15
     x=7,5
b)48