Some equations have been solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
If 9 + 6 - 6 = 60, 8 + 7 - 3 = 59, then 17 + 9 - 6 = ?1
59
2
259
3
20
4
159
Some equations have been solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
If 9 + 6 - 6 = 60, 8 + 7 - 3 = 59, then 17 + 9 - 6 = ?