Answer: 50
Work Shown
0.08x + 16 = 0.12x + 14
0.08x-0.12x = 14-16
-0.04x = -2
x = -2/(-0.04)
x = 50
Cecily needs to write 50 checks for both checking account plans to cost the same.
Account A = 0.08x+16 = 0.08*50+16 = $20
Account B = 0.12x+14 = 0.12*50+14 = $20
Both accounts would cost $20 each when she writes 50 checks per month.
If she writes more than 50 checks, then account A is the cheaper plan. Otherwise, account B is the better option.