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Ответ дан
denisstretyakov

3x + (5x - 2) < 3 - 2x \ 3x + 5x - 2 < 3 - 2x \ 3x + 5x + 2x < 3 + 2 \ 10x < 5 \ x  <  0.5 \

4(5x - 1) - 21x > 1 - 3x \ 20x - 4 - 21x > 1 - 3x \ 20x - 21x + 3x > 1  + 4\ 2x > 5 \ x >  2.5

17 - 11x < 9x - 2(5x + 7) \ 17 - 11x < 9x - 10x - 14 \  - 11x - 9x + 10x <  - 14 - 17 \  - 10x <  - 31 \ x > 3.1

16 - x > 2(1 - 4x) - 3(1 - 3x) \ 16 - x > 2 - 8x - 3 + 9x \  - x + 8x - 9x > 2 - 3 - 16 \  - 2x >  - 17 \ x < 8.5

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