Question

20-[{(25+25)-(20+20)}-9]-1=?​

Answer 1

Answer:

20-[{50-40}-9]-1

20-[10-9]-1

20-1-1

20-2

18

Hope this helps

please mark me brainliest

Answer 2

Answer:

answer is 778 please make me as brainliest yoir answer is on microsoft calculator