Zapisz w jak najprostej postaci podane wyrażenia:
x- {x- [x - (x+1) - (x - 1) - x ] + (1 - x)}
x- {x- [x - (x+1) - (x - 1) - x ] + (1 - x)}= x- {x- [x-x-1-x+1-x]+1-x}= x- {x- [-2x+1]+1+x}= x-{x+2x-1+1+x}= x-4x= -3x
x- {x-[x-x-1-x+1-x]+1-x= x- x-2x -1+x=-x-1
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x- {x- [x - (x+1) - (x - 1) - x ] + (1 - x)}= x- {x- [x-x-1-x+1-x]+1-x}= x- {x- [-2x+1]+1+x}= x-{x+2x-1+1+x}= x-4x= -3x
x- {x-[x-x-1-x+1-x]+1-x= x- x-2x -1+x=-x-1