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2 years ago

9

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

1 answer:

yaroslaw [1]2 years ago

4 0

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

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