Question

The number of variable in the equation 2x + 3y – z = 9 is/are:

(a) 1 (b) 2

(c) 3 (d) 4​

Answer 1

Answer:

3

Step-by-step explanation:

variables are unknown digits

there are 3 variables which are x,y,-z

so the answer is 3

hope it helps u....,