If 7x-5y = 6 and xy = 9 then the value of 343×3-125y3

If 7x-5y = 6 and xy = 9 then the value of 343×3-125y3

A) 5050
B) 5151
C) 5252
D) 5886

ANSWER: We must find x and y value.

7x-5y = 6
xy = 9

so x = 3 and y = 3.

Then, you can calculate what you want.

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