rozwiąż równania: a) -(x-1) = 2 b) x = 1-3 (x+1) c) (x+1)-(1-x) = 1
a) -x+1 = 2 x=-2+1 x=-1
b) x = 1-3x-3 4x = 1-3 4x=-2 x=-1/2
c) x+1-1+x = 1 2x=1 x=1/2
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a) -x+1 = 2 x=-2+1 x=-1
b) x = 1-3x-3 4x = 1-3 4x=-2 x=-1/2
c) x+1-1+x = 1 2x=1 x=1/2