3 PROBLEMS
1) 2*7 - 10/9-4
I GOT: 7
2) 8/5-1 * (3+6) * 3
I GOT: 54
3) (2+6*2+2-4)*2
I GOT: 24
1) the way you typed it:
2*7 - 10/9-4
= 14 - 10/9 - 4
= 10 - 10/9
= 80/9
if you meant: 2*7 - 10/(9-4_
= 14 - 10/2
= 14 - 5
= 9
2) Again I think you meant
8/(5-1) * (3+6)*3
then you are correct
3) correct