28-10-2021
Mathematics

contestada

a.2x=3y và x+y=10

B.3x=5y và x+y=40

C.4x=3y và x-y=11

D.-2x=5y và x+y=30

E.3x=4y và 2x+3y=34

F.4x=5y và 3x - 2y=35

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28-10-2021

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