Question

помогите пожалуйста!​

Answer 1

$2.4( - 4 + a) = - 9.6 + 2.4a \\ - 6.3(x - 10) = - 6.3 + 63 \\ - 4( - x + 3y) = 4x - 12y \\ - 1.4(m - 5n) = - 1.4m + 7n \\ - 8( - x + 4 - 3a) = 8x - 32 + 24a$