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The sum of two numbers is 2780 . Twice the larger number plus three times the smaller number is 591 . Find the numbers.

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解答

Thesumoftwonumbersis2780.Twicethelargernumberplusthreetimesthesmallernumberis591.Findthenumbers.

解答

Thenumbers:7749,−4969
求解步骤
Represent the numbers with xandy:
number1:x
number2:y
A.T.Q.:
x+y=2780
2x+3y=591
x+y=2780,2x+3y=591:x=7749,y=−4969
Thenumbers:7749,−4969

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