Unknown
Name given to a missing value.
The term “unknown” is used for a missing value in a relationship.
In an equation like [latex]y = x + 3[/latex], the letters [latex]y[/latex] and [latex]x[/latex] are called variables.
Examples
- In the equation [latex]2y + 7 = 21[/latex], the unknown is [latex]y[/latex].
- In the equation 5[latex]{y}^{2}[/latex]= 125, the unknown is [latex]y[/latex].