7th Class Mathematics Simple Equations Question Bank Simple Equation

  • question_answer
    Which of the following statement do not hold in solving the equation\[15+3x=3\]?  

    A)  \[3x=3-15\]   

    B)        \[15-3=-3x\]               

    C)         \[15+\frac{3x}{3}=3\]        

    D)         \[\frac{15}{3}+\frac{3x}{3}=\frac{3}{3}\]          

    Correct Answer: C

    Solution :

    The given equation \[15+3x=3\]can be expressed as, \[3x=3-15\] or \[15-3=-3x\] or \[\frac{15}{3}+\frac{3x}{3}=\frac{3}{3}\] but not \[15+\frac{3x}{3}=3\] \[\therefore \]  Option (c) is incorrect.


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