Question

Va rog repede am nevoie de ea

Answer 1

Răspuns:

Explicație pas cu pas:

x/y = 1,5 = 15/10 = 3/2

y/x = 2/3

3*x/5*y = 3/5*3/2 = 9/10

2*x/3*y = 2/3*3/2 = 1

2*y/3*x = 2/3*2/3 = 4/9

_________

x = 3y/2

x + y = 3y/2 + y = 5y/2

x - y = 3y/2 - y = y/2

(x + y)/(x - y) = 5y/2 : y/2 = 5