Which two signs should be interchanged to make the given equation correct? 63 = 56 + 88 ÷ 11 - 15

- and =  + and ÷ ÷ and -  + and =

- and =

In the equation, 63 = 56 + 88 ÷ 11 - 15 if we interchange - and = :     63 - 56 + 88 ÷ 11 = 15 ⇒ 63 - 56 + 8 = 15  ⇒ 15 = 15 LHS = RHS  The equation becomes correct with this interchange