8th Class Mathematics Linear Equations in One Variable Question Bank Linear Equations in one Variable

  • question_answer
    If\[\mathbf{0}.\mathbf{3}\left( \mathbf{x}-\mathbf{1} \right)-\mathbf{0}.\mathbf{5}\left( \mathbf{2x}-\mathbf{1} \right)=\mathbf{0}.\mathbf{6}\], then x = _____

    A)  \[-\]2                           

    B)  \[-\]4/7  

    C)  \[-\]3                          

    D)  \[-\]1

    Correct Answer: B

    Solution :

    (b): \[0.3x-0.3-x+0.5=0.6\] \[\therefore -0.7x=0.4\] \[x=\frac{-4}{7}\]


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