None because without any equality signs they are not equations
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It is: 8y8
If you mean: (-3, 2) and 3x -2y = 5 then it is no because 3(-3) -2(2) = -13
If you mean: -x+2y = 5 and x+y = 1 then their values are x = -1 and y = 2
5(y+1)-2y5 x y = 5y5 x 1 = 55y + 5 - 2y5y - 2y = 3y3y + 5