2. Questions Bank
  3. 8th Class
  4. Mathematics
  5. Linear Equations in One Variable

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

  • question_answer
    Solve \[\frac{x}{7}+\frac{x}{6}=\mathbf{x}-\mathbf{3}\] and find value of x

    A)  1                                

    B)  6              

    C)  126/29   

    D)  18

    Correct Answer: C

    Solution :

    (c): \[\frac{x}{7}+\frac{x}{6}=x-3\]  \[\Rightarrow \frac{13x}{42}=x-3\] \[\Rightarrow 13x=42x-126\] \[\Rightarrow 126=29x\]  \[\Rightarrow x=\frac{126}{29}\]            


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