Question

You hold $25 in a savings account and you deposit an equal amount into your account each week after 5 weeks the account holds $170 write an equation that represents the amount y in dollars of money in the account after x weeks

Answer 1

First find amount you deposit each week.
25+5w=170
5w=145
w=29

You deposit $29 each week, so after x weeks:
25+29x=y