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7th Class Mathematics Simple Equations Question Bank Simple Equation

  • question_answer
    If \[\frac{2}{5}(5x+1)+\frac{3}{5}=1,\] then what is the value of x?

    A)  \[\frac{-1}{5}\]                     

    B)         1                    

    C)         0                                

    D)         \[\frac{1}{5}\]                       

    Correct Answer: C

    Solution :

    We have, \[\frac{2}{5}\,(5x+1)+\frac{3}{5}=1\] \[\Rightarrow \] \[2x+\frac{2}{5}+\frac{3}{5}=1\Rightarrow 2x+\frac{5}{5}=1\Rightarrow 2x+1=1\] \[\Rightarrow \] \[2x=0\Rightarrow x=0\]


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