Jawabanmu

2014-05-30T16:32:07+07:00
(Ta + 50) : 25 = 2 : 1
Ta + 50 = 50
Ta = 0 

kalau benar, semoga bisa membantu .. :)
makasih :)
sama - sama senang bisa membantu
:D
2014-05-30T16:40:04+07:00
A-(-50): 250-(-50) = 25-0:100-0
a+50: 300 = 25:100
100a+ 5000 = 7500
100a = 2500
a = 25
2 3 2