What is the difference between equation and expression?

Hint: For solving this question you should know about the equation and expression. The equation is dependent on the expression. And the expression is a number, a variable or a combination of the numbers and variables and operation of the numbers and variables and operation symbols which are used to perform some task. But the equation is made up of two expressions which are connected to each other by equal sign.

Complete step by step answer:
According to the question we have to differentiate between the equation and the expression.
So, the major difference between equation and expression is in the definition of both equation and the expression. Both the equation and the expression are depending on each other. If any one of them is not available then both are partially complete.
Because as we know that the expressions contain any number, any variable or a combination of numbers and variables and operating symbols all these are responsible for making up an expression.
And the equation is made up of two expressions by putting them on opposite sides and connected by an equal sign to each other.
If we take any example then we can find in that, what is the equation and which is an expression from that.
If eg is \[y+9=2y-3\]
So, here the \[2y-3\] and the \[y+9\] are the expressions and these are showing something. But the whole part is known as the equation. The equation always contains at least two expressions because it is necessary to compare or to be equal from other expressions. So, we are equal to each other from one – another.

Note: The difference between expression and equation is very simple but the equation is completely dependent on the expression because if any expression will be available then it can’t be possible to form an equation and an equation always contains two expressions.