解方程组:2x-3y=4,1⼀2y-x=-1

速度,急需!!!
2025-01-03 02:31:03
推荐回答(2个)
回答1:

X=1/2,Y=-1

回答2:

x = 1/2y + 1
2y = -2
y = -1
x = 1/2