Question

you have an initial amount of 55$ in a savings account and you deposit an equal amount into your account each week. After 6 weeks the account holds 133$. Write an equation that represents the amount y (in dollars) of money in the account after x weeks.

Answer 1

55+added=133
added=amount addeed per week times 6=6x

55+6x=133
minus 55 both sides
6x=78
divide both sides by 6
x=13

add 13 per week

y=13x+55