Question

a + b + c = 281. c = a : 2. (b - a) : (a + c) = 3 rest 1.

Answer 1

a+b+c= 281
c= a : 2
(b-a) : (a+c)= 3 (rest 1)
rescriem  astfel
a= 2c
3(a+c) + 1= b- a
3a+3c+1= b -a
4a+3c+1= b(l-am dus pe a cu semn schimbat)
8c +3c+1=b
11c +1= b
2c +11c+ c + 1= 281
14 c= 281- 1
c=280 :14
c=20.
a= 20 x 2 = 40
b=11c + 1= 11 x 20 +1 = 220 +1 = 221