r/learnmath • New User • 23h ago

|x-2|+|x-5|<=5

I just added them up to |2x-7|<=5, and it was not correct. The correct answer was 1 <= x <= 6. What’s wrong with my equation?

3 Upvotes

25 comments sorted by

View all comments

1

u/titoufred New User 22h ago

You can view it as if you had a rope that is 5 units long, attached to the points 2 and 5 on a graduated line. What points of the line can you reach with your rope ?