Online Self-Tests(S18)

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  1-2. Solve the equation.

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  (1 point each)

  
  

  2	–	1	=	1
  		2

• 
  

  3-4. Solve the equation.

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  (1 point each)

  
  

  2	–	1	=	1
  		3

• 
  

  5-6. Solve the equation.

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  (1 point each)

  
  

  2	–	1	=	1
  		4

• 
  

  7. Find the value of x.

  
  

  x	+	2	=	12
  3		4		12

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  (1 point)

  
  

  Answer:

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• 
  

  8. Find the value of x.

  
  

  2	+	x	=	11
  3		4		12

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  (1 point)

  
  

  Answer:

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• 
  

  9-10. Solve the equation.

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  (1 point each)

  
  

  2	–	1	=	1
  		7