12-24=12 and so you multiply 5x12 and you get 60
I hope this helps you
48=2 (4+w)
24=4+w
w=20
Y + 3 = -5(x - 4)
y + 3 = -5x + 20
y = -5x + 20 - 3
y = -5x + 17 <== this is one
5x + y = 17 <== this is one
Maximum is 0 and minimum is -4. Due to the brackets, that means that this is where the value terminates. The parentheses next to the zero means equal to