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Answer :

Let

x and y the numbers

we have that

x+y=880,000 -------> equation A

x-y=220,000 ------> equation B

solve the system of equations

solve by elimination

x+y=880,000

x-y=220,000

----------------------

2x=880,000+220,000

2x=1,100,000

x=550,000

Find the value of y

550,000+y=880,000

y=880,000-550,000

y=330,000

the numbers are

550,000 and 330,000

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