1) 4(5x + 9y - z) = 20x + 36y - 4z
2) -6(a - 8b - 7c) = -6a + 48b + 42c
3) (6k + n - 4m) * (-1.6) = -9.6k - 1.6n + 6.4m
1) 4(5x + 9y - z) = 20x + 36y - 4z
2) -6(a - 8b - 7c) = -6a + 48b + 42c
3) (6k + n - 4m) * (-1.6) = -9.6k - 1.6n + 6.4m