Step-by-step explanation:
use -2 to open d bracket
4(-7c+5d)+5-10-18d
use 4 to open d bracket
-28c+20d+5-10-18d
re arrange
-28c+20d-18d+5-10
-28c+2d-5
note: - doesnt start an equation so rearrange
=+2d-28c-5
