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20 October, 14:22

Z - 9 = 27

a. 3

b. 16

c. 18

d. 36

+4
Answers (2)
  1. 20 October, 14:29
    0
    z-9=27

    Add 9 to both sides.

    z-9+9=27+9

    z=36
  2. 20 October, 18:17
    0
    Z - 9 = 27 (the opposite of subtraction is addition, so you have to add 9 to each side)

    Z - 9 = 27

    +9 + 9

    Z = 27 + 9

    Z = 36
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