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20 December, 18:44

Solve the following equations for?. Show your method and work. If no solution is possible, explain how

you know.

a.?2 + 12? + 18 = 7

b.?2 + 2? - 3 = 4

c.?2 + 18? + 73 = - 9

+1
Answers (1)
  1. 20 December, 21:40
    0
    Step-by-step explanation:

    Additive identity is 0.

    step 3 used the additive identity property.
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