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a+b=ab work formula to a=b (10 pts to first right answer)?

Show all work to make a=b from this equation a+b=ab

Update:

That isn't what asked sorry

I know the only number that works is 2

I asked to show all work to have a=b

Update 2:

Nice try from every one so far

but still no right answer

and yes the equation can come to a=b

push those brains

3 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    a+b=ab

    -b -b

    _______

    a=ab-b

    a=b(a-1)

    1. subtract b from both sides

    2. factor b out of the right side of the equation

    3. you get b(a-1)

    4. your final answer is a=b(a-1) {you can never get a=b, but you can get a=b, and then something else, so that is your answer! good luck}

  • 1 decade ago

    solving for b, b= a/ (a - 1)

    If a =2, b=2, but if a=3, b= 3/2, if a=4, b=4/3, if a=5, b=5/4, etc.

    So it isn't going to be true that a=b

  • None
    Lv 7
    1 decade ago

    a+b = ab

    a = b(a-1)

    b=a/(a-1)

    The only integer value of b for which this is true is a = 2 and therefore b =2 also.

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