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22 May, 11:15

Evaluate algebraic expressions with a single variable Question Evaluate the following expression at x=-7. - x-5

+1
Answers (2)
  1. 22 May, 11:50
    0
    2

    Step-by-step explanation:

    When x = - 7, - x - 5 = - (-7) - 5 = 7 - 5 = 2.
  2. 22 May, 12:30
    0
    -12

    Step-by-step explanation: Since, - x = - 7, - 7-5 = - 12 (because seven is a negative integer and the equation states that - 7 and 5 has to be subtracted, according to various expressions like - 1-1 the answer is given that it is - 2 if 7 had been a positive integer, then, 7-5=2 as when a positive and negative integer is subtracted, we give the answer either + ve or - ve influenced by the sign of the greater number) Sorry ... i just noticed that the qstn had mentioned x and not - x, but since it has to be fair in answering, i'll leave the answer as how it was ... once again sorry
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