Jawabanmu

2014-03-14T15:04:57+07:00
2a - b  = 175
a - b   = 25
__________-
a = 150
a - b = 25
150 - b = 25
b = 150-25 = 125
jadi : a = 150 dan b = 125
2014-03-14T15:28:23+07:00
Bilangan kecil dianggap sbg "a"

bilangan besar dianggap sbg "b"

b-a = 25
2b-a = 175

eliminasi :
b-a = 25  
2b-a = 175
___________-
-b =  -150
b = 150

b-a = 25
150 - a = 25
a = 150-25
a = 125