1) 0,5(p-2)-(p-1) = 0,5p - 1 - p + 1 = 0,5p - p = -0,5p
2) 4(0.2-3x) + 8x = 0.8 - 12x + 8x = -4x + 0.8
3) 10(0.4-2x) + 13x - 3.8 = 4 - 20x + 13x - 3.8 = -7x + 0.2
4) 9(2a-0.9) - 5a + 21.1 = 18a - 8.1 - 5a + 21.1 = 13a + 13.0
1) 0,5(p-2)-(p-1) = 0,5p - 1 - p + 1 = 0,5p - p = -0,5p
2) 4(0.2-3x) + 8x = 0.8 - 12x + 8x = -4x + 0.8
3) 10(0.4-2x) + 13x - 3.8 = 4 - 20x + 13x - 3.8 = -7x + 0.2
4) 9(2a-0.9) - 5a + 21.1 = 18a - 8.1 - 5a + 21.1 = 13a + 13.0