<human>:  The square footage of the two bedrooms in the apartment that Jenny and Martha share totals 300 square feet. If Jenny's bedroom is 60 square feet larger than Martha's, how large, in square feet, is Martha's bedroom?
<bot>: Define a variable ** Let M be the number of square feet in Matha's bedroom
How large is Jenny's bedroom? ** Jenny's bedroom is M+60 square feet.
Write an equation ** M+M+60=300
Simplify ** 2M+60=300
Subtract 60 ** 2M=240
Divide by 2 ** M=<<120=120>>120
How large, in square feet, is Martha's bedroom? ** Martha's bedroom is 120 square feet.
#### 120