Question

State the following is an equation (with a variable). Give a reason for your answer. Identify the variable from the equation with a variable.

$20-\left(10-5\right)=3\times 5$

Answer 1

We know that an equation is a mathematical statement that is made up of two expressions connected by an equal sign and a symbol that takes various numerical values is called a variable.

Given $20-\left(10-5\right)=3\times 5$

Since, $20-\left(10-5\right)=3\times 5$ consist only of numerical values, not variable.

Therefore, $20-\left(10-5\right)=3\times 5$ is a numerical equation that does not have a variable.