1.20 - Intermediate Algebra

Question

The width of a rectangle is 6 less than the length. Let l represent the length of the rectangle. Write an expression
for the width of the rectangle.

Step-by-Step Solution

Answer

$l-6$

Using concept:

The phrase "b less than a" is being used to execute a subtraction operation, while the word "$a-b$" is used to accomplish a subtraction operation.

Write an expression for the width of the rectangle.

The phrase implies that the breadth of a rectangle is  "6 less than the length".
Since previously said, the important word is a difference, hence the two terms will be subtracted.
Where l denotes the rectangle's length.
As a result, l will be substituted for the length.
Hence, the "6 less than l" was rewritten as "$l-6$" .