[tex] - 2 \times + ay = b \\ (b - 1) \times - y = 3 \\ \\ (x \: .y) = (2 \: .5) \\ a \: \: \: kactır[/tex]
2 \times + ay = b \\ (b - 1) \times - y = 3 \\ \\ (x \: .y) = (2 \: .5) \\ a \: \: \: kactır​