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17 July, 11:55

2.2+x + (-3.4); x=-2.5

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Answers (2)
  1. 17 July, 12:06
    0
    2.2 - 2.5 - 3.4

    -3.7

    ...
  2. 17 July, 14:18
    0
    The answer is - 3.7. Plug in - 2.5 into the expression. Then the expression is rewritten as 2.2 - 2.5 - 3.4. Subtract - 2.5 from 2.2 and you get -.3. Now, the expression is -.3 - 3.4. Subtract those from each other and you get - 3.7.
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