if x = 6 + y and y = -z/3, what does x equal in terms of z?

Question

a. 3(6+z)
b. 3(z-6)
c. 6-z/3
d. z/3-6
e. 6+z/3

Answer 1

x = 6 + y
y = -z/3
substituting,
x = 6 - z / 3

thus letter (c).

Answer 2

post it.