Question

HELP-ME, POR FAVOR!!

Answer 1

x/ x +3 = 4/6
6.x = 4.(x + 3)
6.x = 4.x + 12
6x -4x = 12
2x = 12
x = 6

4/y = x/ 7,5 , se x =3
4/y = 6/7,5
6y = 4.(7,5)
6y = 30
 y = 5.