Question

A carpenter is building a bookcase the perimeter of the top is 108 in. What length must the stock be if the width is 8 in.?

The shelf is_____inches long.

Answer 1

\[Perimeter = 2 \times width + 2 \times length\]
\[180in = 2 \times 8in + 2 \times length\]

Does this seem correct?
Do you know how to isolate a variable?

Answer 2

L=46