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|x - 8| = 9,3
x + 8 = 9,3
x = 9,3 - 8
x = 1,3
.............
ale to i tak pewnie źle
-4|x + 5,8| ≥ -12,8
-4 · x + 5,8 ≥ -12,8
-4x + 5,8 ≥ -12,8
-4x ≥ -12,8 - 5,8
-4x ≥ -18,6 || : (-4)
x ≤ 4,65