Question

Part A. Solve -np - 80 < 60 for 'n'. Show your work.

Part B. Solve 2a -5d =30 for 'd'. Show your work.

Answer 1

Part A: 
- np -80 <60
Adding 80 both sides
- np < 140
Dividing by -p both sides
n > -140/p
Part B:
2a - 5d =30
5d = 2a-30
d= (2a-30)/5