{15÷[(6+9)÷5]+3} ☺☺☺☺
Well first you do the inside so 6+9 Which is 15 then you do 15 divided by 5 which is 3 now your equation looks 15 divided by 3 plus three now divided 15 divided by 3 which is 5 and then plus three which is 88 is your answer