Chess Math Puzzle - with Answer

Chess Puzzle - Can You Solve This ?

ANSWER

Answer is 40

Steps

Equation 1: 4 + (2 x 4) = 12

Equation 2: 2 + (9 + 4) - 11 = 4

Equation 3: 2 + (2 + 4) = 8

Equation 4: (9 + 2) + 4 = 15

Equation 5: (11 + 11) + (4 + 9 + 4) x 2 - (2 x 2 x 2 x 2) = 40