Question

Which expression is not equal to 18? a) 2z, z = 9 b) z – 5, z = 23 c) 3z + 3, z = 5 d) 9z ÷ 3, z = 5

Answer 1

Answer:

d

Step-by-step explanation:

a}2z,z=9

  so, 2*9=18

b}z-5,z=23

   so, 23-5=18

c}3z+3,z=5

   so, 3*5+3=18

d}9z/3, z=5

    so, 9*5/3=45/3=15

so answer is d.