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18 August, 18:38

9y+11z+7y-4z

What is the answer?

16y + 7z

16y + 15z

2y + 7z

23yz

+5
Answers (1)
  1. 18 August, 18:49
    0
    Answer is 16y + 7z

    9y + 11z + 7y - 4z

    = 9y + 11z + 7y + - 4z

    Combine Like Terms:

    = 9y + 11z + 7y + - 4z

    = (9y + 7y) + (11z + - 4z)

    = 16y + 7z
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