Question

Quien me resuelve paso a paso esta operación combinada? (108:6-3)x7-4x(3x5-5)+156:12-9= (?)

Answer 1

= (108:6-3)x7-4x(3x5-5)+156:12-9
= (18 -3)x7 - 4x(15-5) + 13-9
= 15x7 - 4x10 + 13-9
= 105 - 40 +13 - 9
= 69