-8a · 2,5b = -20a
23a + 1,8b - 32a - 2,4b = 23a - 32a + 1,8b - 2,4b = -9a - 0,6b
-6(x - 3) + 2(x - 5) = -6x + 18 + 2x - 10 = -6x + 2x + 18 - 10 = -4x + 8
-8a · 2,5b = -20a
23a + 1,8b - 32a - 2,4b = 23a - 32a + 1,8b - 2,4b = -9a - 0,6b
-6(x - 3) + 2(x - 5) = -6x + 18 + 2x - 10 = -6x + 2x + 18 - 10 = -4x + 8