Question

_+_+_= 30
Use only
1,3,5,7,9,11,13,15
You can repeat it

Answer 1

1 possible solution:

(5x7) in the first blank

(-3!) in the second blank

(-1) in the third blank

Explanation:

(5x7) + -(3!) + -(1) 3! equals 3x2x1 or 6

35 + (-6) + (-1)