Fill in the blanks with suitable sign <, >, = to make the statement true.
(a) (-8) + (-4)..............(-8) -(-4)
(b) (-3) + 7 -(19)..................15 - 8 +(-9)
(c) 23 - 41 +11 ..................23-41-11
(d) 39+(-24) -(15)...................36+(-52) - (-36)
(e) -231 + 79 +51 ...................-399 + 159 + 81
