Answers

  • Brainly User
2015-10-23T23:21:47+08:00
1)  12 - y = 15
     -y = 15 - 12          Additive Inverse
   -1(-y = 3 ) -1          Multiplicative Inverse
    y = -3

23.)  7 = 3 + z
       7 - 3 = z            Additive Inverse
       z = 4

24)  z - 12 = 8
      z = 8 + 12          Additive Inverse
      z = 20

25)  11 = 4 - w
       11 - 4 = -w        Additive Inverse
      -1(7 = -w )-1       Multiplicative Inverse
       w = - 7

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