Home > GB8I > Chapter 6 Unit 7 > Lesson INT1: 6.2.1 > Problem6-50

6-50.

Jonathan and Laura are three miles apart and traveling towards each other. If Jonathan travels $m$ miles, write an expression to represent how far Laura has traveled when they meet each other.

Since they started $3$ miles apart, when they meet, the sum of the distances must be 3 miles.

Laura must have traveled $3-m$ miles.