1 is 4a+15b
2 is 5x-4
3 is 2x-22
4 is 8x-21
5 is 25x + 55
6 is 55x - 17
PEMDAS Solve the parentheses first so 9+4=13. Then do the division so 6/6=1. Now the equation is 37- 13+ 1. Then work left to right. 37-13= 24 then 24+1=25.
Answer: 1.
<----(answer for 7 x 10 - 8)
2.
<---- (answer for 2 x 10-8)
Step-by-step explanation:




Answer:
16
Step-by-step explanation:
12+4=16