Fill in the Blank with One of the Words or Phrases

Multiple Choice

Fill in the blank with one of the words or phrases listed below. $$\begin{array} { l l l } \text { no solution } & \text { all real numbers } & \text { linear equation in one variable } \\\text { equivalent equations } & \text { formula } & \text { reversed } \\\text { linear inequality in one variable }&\text { the same }\end{array}$$
-An equation that describes a known relationship among quantities is called a(n) _______.

A) formula
B) linear equation in one variable
C) no solution
D) linear inequality in one variable