Rozwiąż rówania;
(x-1)(x+1)-x^=8x
3(x+2)^-3x^=18
6x^-6(x+3)(x-3)+3x=39
7(x+1)=4( jedna cała i 1/4 x + 1/2)
3x+1 /6 = x+4/4 razy 12
(2x-7)(2x+7)+5x=4x^+11
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