find the value of expression 5+2+6 (8-7)+1 6-(3+1)

(5 + 2) + 6(8 - 7) + 16 -(3 + 1),

7 + 6(1) + 16 - 4,
7 + 6 + 16 - 4 = 29 - 4 = 25.