haris785 haris785

14-07-2016
Mathematics

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If a+b-c=d, if a-b+c=e, then a= ?

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nataliemarie67060798 nataliemarie67060798

14-07-2016

a + b = d+c
a - b = e - c
The b and c cancel out.
2a = d+e
a = (d+e)/2

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