Answer:
-1
Step-by-step explanation:
1. replace all the variables with the values it gives you-
6(5) - [ 3(3) + 7] - (5)x(3)
2. then if you combine everything using pemdas-
30 - (9 + 7) - 15
3. repeat step #2-
30 - 16 - 15
4. then solve-
30 - 16 = 14 then subtract 15 to give you -1
