Question

A 6-foot board is cut into two pieces. If one piece is x feet long, express the other length in terms of x.

Answer 1

6 – x ft

Explanation:

If a 6-foot board is cut in two pieces, both lengths could be anything that add up to 6 feet since the problem did not specify where the board was cut.

So if one piece is x feet long, the other must be 6 - x feet long because:

x + (6 – x) = 6