Jawabanmu

2014-02-21T08:02:37+07:00
1. 2x+5=9
2x=9-5
2x=4
x=2
7k-4=5k
7k-5k=4
2k=4
k=2
4x-8=6x+12
4x-6x=12+8
-2x= 20
x=-10
3x+6=8x-10
3x-8x=-10-6
-5x--16
x=16/5
2x-6=9x+8
2x-9x=8+6
-7x=14
x=-2
2014-02-21T08:03:22+07:00
1. 2x = 4. x= 2 2. 7k-5k = 4. 2k=4. k= 2 3. 4x-6x = 12+8. -2x=20. x= -10 4. 3x-6x=-10-6. -3x=-16. x= 5.3 5. 2x-9x=6+8. -7x=14. x=-2