5x-15 Calculator

This calculator helps you solve simple linear equations of the form 5x-15. It's perfect for students, teachers, and anyone needing to solve for x in equations like 5x-15=0.

How to use this calculator

Using this calculator is simple:

Enter the value for the equation (default is 5x-15=0)
Click "Calculate" to solve for x
Review the result and formula explanation

The calculator will show you the step-by-step solution and the final value of x.

Formula explained

The basic formula for solving equations of the form ax + b = 0 is:

x = -b/a

For the equation 5x-15=0:

x = 15/5

x = 3

This calculator applies this formula automatically when you click "Calculate".

Worked examples

Example 1: Basic equation

Solve 5x-15=0

x = 15/5

x = 3

Example 2: Different equation

Solve 5x-10=0

x = 10/5

x = 2

Frequently asked questions

What is the formula for solving 5x-15=0?

The formula is x = -b/a. For 5x-15=0, this becomes x = 15/5 = 3.

Can I solve equations with different coefficients?

Yes, this calculator works for any equation of the form ax + b = 0. Just enter your values and click calculate.

What if the equation doesn't equal zero?

This calculator is specifically designed for equations where the right side equals zero. For other forms, you would need a different calculator.