Use the rule for order of operations to simplify the expression as much as possible:

`-7+5(-2+4) =`

Use the rule for order of operations to simplify the expression as much as possible:

`8(-4+5) + 4(-4+9) =`

Use the rule for order of operations to simplify the expression as much as possible:

`3+28-:(-7)+2(3) =`