Question

You have $121 in a savings account and save $1 2

per week. Your friend has S9 I in a savings
account and saves SI 7 per week. How many
weeks will it take for you and your friend to have
the same balance?

Answer 1

It will take 6 weeks for you and your friend to have the same balance.

First, you must set up your equation, with
`x` representing the amount of weeks

until you and your friend have the same balance.

`121+12x=91+17x`

Then, you must subtract 91 on both sides.

`30+12x=17x`

Next, subtract 12x on both sides.

`30=5x`

Finally, divide 5 on each side

`x=6`