Online Self-Tests(E11)

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  1. If x+ 1 = –1, find the value of 1 + (x–1).

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  (1 point)

  
  

  Answer:

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  2. Evaluate the expression below if x× (–1) = 1.

  (2 × x) – 2

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  (1 point)

  
  

  Answer:

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  3. Evaluate the expression below if x = –4 and y = –2.

  x – y

  2

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  (1 point)

  
  

  Answer:

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  4. Evaluate the expression below if x = –6 and y= –3.

  2x

  +

  3y

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  (1 point)

  
  

  Answer:

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  5. Evaluate the expression below if x= 15 and y = –3.

  x÷ y

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  (1 point)

  
  

  Answer:

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  6. If x× 4 = –4 and y = 4, find the value of x– y.

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  (1 point)

  
  

  Answer:

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