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.

$7-\mathrm{x}=5$

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 that $7-\mathrm{x}=5$, which have two sides and connected by equal sign

Therefore, $7-\mathrm{x}=5$ is an equation with a variable $\mathrm{x}$.