解方程x减1分之x加2减2x分之1等于3?

2025-12-14 22:11:22
推荐回答(2个)
回答1:

x/(x-1)+1/(2-2×)=3
x/(x-1)-1/2(×-1)=3
2x-1=3×2(×-1)
2×-1=6x-6,4x=5,
x=5/4

回答2: