michgarola michgarola

06-05-2017
Mathematics

contestada

How many is?
with rocedure and testing

-7d - 5 = -5d + 1

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ayugmaacharya ayugmaacharya

06-05-2017

-7d-5 = -5d +1

-7d+5d-5 = -5d+5d+1

-2d -5 = 1

-2d-5+5 = 1+5

-2d = 6

-2d/-2 = 6/-3

d = -3

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