Question

Wanda starts with $1200 and deposits $40 per week. Zelda starts with $700 and deposits $50 per week. When will Wanda have the same amount of money as Zelda

Answer 1

Let the number of weeks to have same amount = x Then:-

1200 + 40x = 700 + 50x
1200 - 700 = 50x - 40x

10x =  500
x = 50  
answer is 50 weeks