Mathematical problem: given 4x = 3Y + 5Z, 2x + y = Z, find the value of X: Y: Z

Mathematical problem: given 4x = 3Y + 5Z, 2x + y = Z, find the value of X: Y: Z

From 2x + y = Z, we can get: 4x + 2Y = 2Z, so 4x = 2z-2y -------- (1) from 4x = 3Y + 5Z and (1), we can get: 3Y + 5Z = 2z-2y -------- (2) so we can get: 5Y + 3Z = 0, so 5Y = - 3Z, so y / z = - 3 / 5, so y / z = 9 / 25 --------