Verbal math little help?

Question

In one storage have 126 t apple, in other 52 t.From the first they sell two times more apples,then the second,after that in the second storage there was three times less apples ,than the first.How many t of apples are they sell from every storage ?

Answer

x1 = quantity sold from store 1 = 60
x2 = quantity sold from store 2 = 30
y1 = quantity left in store 1
y2 = quantity left in store 2

demonstration:

126-x1=y1
52-x2 =y2

126-2*x2=y1
52-x2=y1/3

52-x2=(126-2*x2)/3
156-3*x2=126-2*x2
156-126=3*x2-2*x2
30=x2

x1 = 2*x2=60

Verbal math little help?

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