rozwiąż równania i nierówności
(x + 1)^2 - 2x^2 =5 - (x - 4)^2
(x + 4)^2 - (x + 8)(x - 8) = 96
3x - [7 -(5 - 4x)] -(x - 8) = 0
3/4x - (4x + 1)/2 >= -x -3/8
|2x + 3|= 5
|7 - x|= 4
|2x - 5|< 6
|1 - 3x|> 2
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