Question

calcule x/y sabendo x+1/y=3 y+1/x=1/3

Answer 1

Vamos là

calcule x/y sabendo (x+1)/y=3

x + 1 = 3y , y = (x + 1)/3

x/y = 3x/(x + 1)

calcule x/y sabendo (y+1)/x=1/3

3y + 3 = x

y = (x - 3)/3

x/y =  3*x/(x - 3)