11. Here's my theory..probly wrong but its a shot...

6751X + 3249Y = 26751
3249X + 6751Y = 23249

6751-3249 = 3502...26751-23249 = 3502...subtract the equations and get

3502x - 3502y = 3502..to get this to work x would have to be twice the amount of y because y negates 3502 times that amount...so the solved equation if x=2y ...because x is whatever y is doubled...how's that?

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