b=3 1-2a
3 1-a+c = 33->; c-a=2
3 1-a-c = 9->; a+c=22
-& gt; c= 12
a= 16
b= 1 1
ABC = 10 * 1 1 * 12 = 1320
a+b=35.2
a-b=25.8
-& gt; 2a = 6 1->; a=30.5
-& gt; b=4.7
ab= 143.35