Show that the given proportions are equivalent.

a+c / b+d = a-c / d-b

and a / b = c / d

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  1. are u sure it's a-c/d-b for the 2nd term??

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  2. a/b=c/d

    a+c / b+d = a-c / b-d
    so the given proportions are equivalent

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  3. whoops did it again lol.. no its a-c / b-d ...but i still don't know how to do it

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  4. do u understand my answer??

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  5. yeah i get it.. thanks some times i have brain and once i see it written out im like.. oh i should have known that. thanks again!!

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