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7th Class Mathematics Integers Question Bank Integer

  • question_answer
    The value of X in \[-19\times (4+(-2))=-19\times 4+(-19)\times X,\]

    A)  2                                

    B)  \[-19\]

    C)         4                    

    D)         \[-2\]              

    Correct Answer: D

    Solution :

    We have. \[(-19)\times (4+(-2))=-19\times 4+(-19)\times X\] \[\Rightarrow \] \[(-19)\times (4-2)=-19\times 4+(-19)\times X\] \[\Rightarrow \] \[(-19)\times 2=-19\times 4+(-19)\times X\] \[\Rightarrow \] \[-38=-76-19X\,\,\Rightarrow \,\,X=\frac{38}{-19}=-2\]


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