Question

a 29 foot board is cut into three pieces at a sawmill. the second piece is 2 feet longer than the first and the third piece is 4 feet longer than the second. what is the length of each of the three pieces?

Answer 1

Let x be the length of the first piece.
Then the second piece is x+2 and
The third piece is (x+2)+4 or x+6
Add the three pieces and set the sum equal to 29

Answer 2

I still don't understand this. like how to set the equation up