Math

Question

The value of A for which [5+(-3)]+(-4)=A+[(-3)+(-4)] is true is​

2 Answer

  • Answer:

    5

    Step-by-step explanation:

    [5+(-3)]+(-4)=A+[(-3)+(-4)]

    therefore

    [5-3)]+(-4)=A+[(-3)+(-4)]

    therefore

    [2]+(-4)=A+[(-3)+(-4)]

    then

    2-4=A+[(-3)+(-4)]

    then

    -2=A+[(-3)+(-4)]

    then

    -2=A+[(-3)-4)]

    then

    -2=A+[-7]

    then

    -2-[-7]=A

    therefore

    A=-2+7=5

  • Answer:

    5

    Step-by-step explanation:

    first from LHS

    5-3=2 then 2-4=-2

    from rhs

    -3-4=-7 then -2-(-7) =-2+7=5

    then a =5

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