Question

maria bought seven boxes. A week later half of her boxes were destroyed in a fire. There are now only 22 boxes left. With how many boxes did she start

Answer 1

%287%2Bx%29%2F2+=+22 ==> 7%2Bx+=+44 ==> x = 37 boxes, the original number of boxes she had.

Answer 2

but how would you get 37