Question

a+b=52,a:b=3r4 sa se afle nr.

Answer 1

a+b=52
a:b=3 rest 4 =>a=3b+4
3b+4+b=52
4b=52-4
4b=48=>b=12=>a=40

Answer 2

a + b = 52

a : b = 3 r 4

a = 3 x b + 4 

si inlocuim in prima relatie 

3 b + 4 + b = 52

4b = 52 - 4

4b = 48

b = 12

a = 3 x b + 4 = 12 x 3 + 4 = 40