物质和精神 比喻:一道初一数学题 急用

来源:百度文库 编辑:高校问答 时间:2024/05/03 22:51:40
去括号,合并同类项
1-(1-(1-x)-x)

1-(1-(1-x)-x)
=1-(1-1+x-x)
=1-0
=1

1-(1-(1-x)-x)
=1-(1-1+x-x)
=1-0
=1

1-(1-(1-x)-x)
=1-(1-1+x-x)
=1-0
=1
绝对正确!!!~
你放心 嘻~

1-(1-(1-x)-x)
=1-(1-1+x-x)
=1-0
=1

1-(1-(1-x)-x)
=1-(1-1+x-x)
=1-0=1

1-(1-(1-x)-x)
=1-(1-1+x-x)
=1-(0+0)
=1-0
=1