Question

Marie has $830 in her bank account and withdraws $60 each month. Denise has $970 in her bank account and withdraws $80 each month.
In how many months will Marie and Denise have equal amounts of money in their accounts?
A. 4
B. 5
C. 7
D. 9

Answer 1

830-60x=970-80x
-60x=140-80x
20x=140
2x=14
x=7

C, 7 months