PEDMAS says do the mult first
-1/4 x -8 = 2 then do the add,
-2 +2 = 0
I'll do it
PEMDAS states do the multiplication first, again
2/3 x (-7) = -14/3
2/3 x (-5) = -10/3
Now just add them.
-14/3 + (-10/3) = ?
See if you can get that yourself!