Question

What are equations?

Answer 1

Define equation.

A mathematical statement using an 'equal to' sign between two expressions is called an equation.

Consider an example of an equation:

$4x+5=20$

In the above equation, we see that the left-hand side expression $4x+5$ is equal to the right-hand side expression $20$.

Therefore, an equation is a mathematical statement that includes variables, numbers, and $=$sign.