3x-2y=10 (1)
4x-3y=13 (2)
(1)*3,
9x-6y=30,(3)
(2)*2,
8x-6y=26,(4)
(3)-(4),
x=4,
代入(1),
y=1,
∴x=4,
y=1
提示:运用加减消元法