Respuesta :

Answer:

Equation 1: x = 5 y/ 2 − 14  and  y = 2 x /5 + 28/5

Equation 2: y = 9 + 2 z/ 7   and  z = − 63 /2 + 7 y/ 2

Equation 3: y = 7 /3 − 2 z /3   and  z = 7/ 2 − 3 y /2