State which of the following are equations with a variable. In case of an equation with a variable, identify the variable.
$7 \times 3 - 19 = 2$

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Solution

Given, $7 \times 3 - 19 = 2$
An equation is a statement of equality between two mathematical expressions containing one or more variables.
Yes, it is a equation but it is a numerical equation. It has no variable

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