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Describe All Solutions of Ax 0 Calculator

Reviewed by Calculator Editorial Team

The equation ax = 0 is a fundamental linear equation in algebra. This guide explains how to describe all possible solutions to this equation, including the special case when a = 0.

What is the equation ax = 0?

The equation ax = 0 is a linear equation where a and x are variables. In this equation:

  • a is a coefficient (a real number)
  • x is the variable we're solving for
  • = 0 means the equation is set equal to zero

This equation represents a straight line passing through the origin (0,0) on the Cartesian plane. The solutions to this equation depend on the value of the coefficient a.

Describing all solutions of ax = 0

The solutions to the equation ax = 0 can be described as follows:

  1. If a ≠ 0 (a is any real number except zero), then the only solution is x = 0.
  2. If a = 0, then the equation becomes 0x = 0, which simplifies to 0 = 0. This is an identity and has infinitely many solutions. Every real number x satisfies this equation.

Formula: ax = 0

Solution:

  • If a ≠ 0, then x = 0
  • If a = 0, then all real numbers x are solutions

This distinction is important because it shows how the value of the coefficient a affects the nature of the solutions to the equation.

Examples of solutions

Let's look at some examples to illustrate the solutions:

Example 1: a ≠ 0

Consider the equation 5x = 0:

  • Here, a = 5 (which is not zero)
  • The solution is x = 0/5 = 0

Example 2: a = 0

Consider the equation 0x = 0:

  • Here, a = 0
  • This simplifies to 0 = 0, which is always true
  • Therefore, every real number x is a solution

Note: When a = 0, the equation is called an identity because it holds true for all values of x.

FAQ

What is the solution to ax = 0 when a is not zero?
The only solution is x = 0 when a ≠ 0.
What happens when a = 0 in the equation ax = 0?
The equation becomes an identity (0 = 0) with infinitely many solutions, meaning every real number x satisfies the equation.
Is ax = 0 a linear equation?
Yes, ax = 0 is a linear equation because it can be written in the form ax + b = 0 where b = 0.
What is the graph of ax = 0?
The graph is a straight line passing through the origin (0,0) on the Cartesian plane.
Can ax = 0 have complex solutions?
No, ax = 0 only has real solutions as described above.