Yes
That will depend on the plus or minus value of 4y in order to simplify the given expression
5y - 2
-y + -4y = -5y
(6x - 5y) + (-3x - 4y) =6x - 5y - 3x - 4y =3x - 9y =3 (x - 3y)
5(y + 1)
The expression is equivalent to 23y - 3.
7(3y-2)-(-4y+9)
5y + 6
25xy is an equivalent expression.
7
It equals x+5y simplified