Question

| 5x – 2| - | 1-3x| , если х=1

Answer 1

$x = 1 \\ |5 \times 1 - 2| - |1 - 3 \times 1| = \\ |5 - 1| - |1 - 3| = \\ |4| - | - 2| = 4 - 2 = 2$