Based on the way you worded the question I believe this is the problem:
15/3 x 7 -4^8
If I wrote the problem wrong then the solution is incorrect.
15/21 -65536
0.714285714286 -65536
approx. = -65535.3857143
22150.5
50/10 = 5 x 6 = 30 - 15 = 15
676
15 minus 6 divided by 2 is equal to 12.
12
Employing the laws of BODMAS, ((25/5) x 4) - (15 x 8) = -100
535
3
30/2 = 15 x 7 = 105 - 6 = 99
What is 50 minus 30 divided 6 divided 9 plus 15 equals
-15
(12-15)/5 = -3/5