Apply the distributive properties and simplify - 4 (5+7y) + 6 (2y-9) =

To apply distributive property, you should distribute - 4 to the first parenthesis and + 6 to the other parenthesis. Take note negative times positive is negative and same signs will make positive.

-20 - 28y + 12y - 54 = 0

-74 = 16 y

y = - 4.625