Online Self-Tests(E7)

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  1. If x+ 1 = –2, find the value of x+ 3 x (–1).

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  (1 point)

  
  

  Answer:

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  2. Evaluate the expression below if x× (–3) = 2.

  2 – x x (–3)

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  (1 point)

  
  

  Answer:

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  3. If x= –4, find the value of (–1) × x+ x.

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  (1 point)

  
  

  Answer:

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  4. If x= 6 and y= –8, find the value of y– x.

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  (1 point)

  
  

  Answer:

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  5. Evaluate the expression below if x= 5 and y= –2.

  x× y

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  (1 point)

  
  

  Answer:

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  6. If –2x= 2 and y= 1, find the value of x– y.

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  (1 point)

  
  

  Answer:

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