Question 585982
If (1,-1) is a solution, then x = 1 and y = -1 should satisfy the equation. Let's see if it does.



y = 2x -1


-1 = 2(1) -1


-1 = 2 - 1


-1 = 1



Since the equation is false, x = 1 and y = -1 do NOT satisfy the equation. 


Therefore, (1,-1) is NOT a solution.

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