Va rog sa ma ajutati! EXERCITIUL 3

{x, y} DP {3, 4} ⇔ x/3 = y/4
x = 3k
y = 4k
y = x + 14
4k = 3k + 14
k = 14
x = 42
y = 56
(x,y) d.p. (3,4) => x/3=y/4
y=x+14
x/3=(x+14)/4 => 3(x+14)=4x => 3x+42=4x =>
42=4x-3x => x=42
y=42+14=56