Online Self-Tests(S16)

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  1-2. Solve the equation.

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  (1 point each)

  
  

  2	1	–	1	1	=
  	2			3

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  3-4. Solve the equation.

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  (1 point each)

  
  

  1	1	–	1	1	=
  	2			4

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  5-6. Solve the equation.

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  (1 point each)

  
  

  1	2	–	1	1	=
  	3			4

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  7. Find the value of x.

  
  

  1	x	–	1	1	=	11
  	4			5		20

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  (1 point)

  
  

  Answer:

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  8. Find the value of x.

  
  

  9	–	1	x	=	7
  5			6		15

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  (1 point)

  
  

  Answer:

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• 
  

  9-10. Solve the equation.

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  (1 point each)

  
  

  1	4	–	1	2	=
  	6			7