Question

A literal equation has only one variable. True False

Answer 1

This statement is actually false.

I have provided proof and wish you all the best (grade).

Answer 2

$The answer is False.$

$The reason is that, the letters or variables in a literal equation are like parameters that can be any real number.$

A literal equation has two or more variables or letters, that are used to represent real values.

An example is the perimeter of a square, which is given by the formula,

$P=4l$
Here, the P represents perimeter of the square and l represents the length of the square.

Since the length of a square can assume any positive value,the above literal equation has $infinitely many solutions$.

For instance, if

$l=1, P=4\times1=4$

$l=2, P=4\times2=8$

and so on and so forth.

Other examples of literal equations include:

The perimeter of a rectangle, which is given by the formula:

$P=2w + 2l$

The formula for finding the perimeter of a circle:

$C = 2 \pi \: r$

The set of values that satisfy the above formulas are infinitely many.