2分之一中括号x减2分之一小括号x减一小括号中括号等于三分之2小括号x减1

2025-04-28 07:32:26
推荐回答(2个)
回答1:

1/2【x-1/2(x-1)】=2/3(x-1)
1/2(x-1/2x+1/2)=2/3x-2/3
1/2(1/2x+1/2)=2/3x-3/3
1/4x+1/4=2/3x-2/3
2/3x-1/4x=1/4+2/3
5/12x=11/12
x=11/5

回答2:

1/2【x-1/2(x-1】=2/3(x-1)
=11/6