|x + 1| - | - 3| = x + 1 - 3 = x - 2
1,1 - 2 = - 0,9
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|x + 1| - | - 3| = x + 1 - 3 = x - 2
1,1 - 2 = - 0,9
Подставляем значения:
|2,1|-3
2,1-3
-0,9