Question

X + y + z=120 x y z 3 5 7

Answer 1

x- y + z = 120

3 -5+ 6 = 4

Assim

x- y +z/ 3 - 5+ 6 = 120/4

x- y +z/ 3 - 5+ 6 = 30

x/ 3 = 30

x = 90

y/5 = 30

y = 150

z/6 = 30

z= 180

x - y + x = 120

90 - (150) +180 = 120