Question

explain why we use only x on the math to solve the equation??​

Answer 1

Answer:

This is because x is actually a normal non-fixed valued amount which can vary until we find its actual value.

Remember that x is known as a variable.

Also,

It's allowed to us to use any of the alphabets in place of x.

For Example:

If there's an equation stating that 2x+5=9,

Then it is possible that we can understand it as 2a+5=9 or 2j+5=9 etc.

I know why you've asked this question.

Because your teacher used to explain you the concept of equations by taking the example of the variable x.

Teachers used to do this as they find that the variable x is very familiar to the answer while solving any equation.

Thank You.