How to Use Equation Solver?

Mathematical equations are those equations with an equal sign in between them. The equations are categorized into linear equations, which could consist of one, two or three variables, radical equations, exponential equations and quadratic equations.

What is an equation solver?

An equation solver is basically the formula to use in order to solve an equation. The formula can be, complete square method, factoring, quadratic formula. Most of them are used to solve quadratic equations.

The complete square method is appropriate to use especially when the factoring a quadratic equation does not work. It can also be applicable when finding irrational and complex roots.

How it work:

Take the equation to be  

On the other hand, quadratic formula is best used to solve a quadratic equation when neither complete square method nor factoring method produces the right results or is hard to use in certain equations. It can also be used by someone who is in a hurry but also knows how to use the formula.

The formula looks like this: 

X, in this case, will represent the variable we are looking for while the other letters a, be and c are random numbers. They are used as numerical coefficients of any given quadratic equation.

An example of a quadratic equation resembles the equation below.

 A linear equation can have one variable like 4x+10= 6 

Or two variables like the equation below 6y+5y= 12

Or even three variables like equation below. 2x+5y-9z

Solving practical example

Let us take a practical look at how to solve an equation using any the mentioned methods.

Our quadratic equation will be.  

We will use the quadratic formula as our equation solver in our case.

Since we know that

Then solving the equation will not be that difficult. As usual, we will substitute letters a, b and c in the formula with the values 1, 3 and -9. The equation will change to be 

After doing the calculations and doing it correctly, the values for x here should be 1.854 and -4.855. If your answer is different from mine, you need to double check your steps again. Chances are, you missed a step, or you forgot to input a certain value or may have substituted the values for a, b and c wrongly. Do that, and I am sure you will land on an answer that is same to mine.

Did I forget to mention that if you do not know how to use any of the formulas, I touched on at the top of this article where you can get help? I think I did. Let me tell you where you can go and learn all what I have mentioned here. The site is www.quickmath.com. It is really helpful most to those who did not understand what their math teacher or lecturer, depending on your level of education, taught. You may have missed a math class too. The best you can do to catch up with the rest of the class is to visit this site and start learning.

Have you ever been told to draw a Graph?

Seriously, has your teacher or your lecturer or your tutor has ever given you an equation and told you to draw a graph after solving it? If you are clueless about you will waste most of your time trying to figure out how to do that. Anyway, an equation that has two variables e.g. x and y is called a linear equation.

The mentioned variables are commonly used worldwide to create a linear equation. However, some math books could use p and q, or a and b to create equations.

Most of the time a linear equation is something that has been written down for you to see it. It could look something like this

 3x + 5y = 12 or p= 8q -15. These are examples of linear equations.

The above equation is pretty clear or straight forward. Nonetheless, you can come across an equation which has been written in words. In this case, you have to carefully follow the instructions in order to come up with the write equation.

Want to learn how to solve a linear equation?

It is one thing to correctly deduce an equation from a given sentence and another to solve it. If you think linear equations are giving you headaches when trying to solve them, you should start smiling because there is a better way to do it. All you need to do is to go in line and browse to www.quickmath.com. This is a site that will give you a better view of solving linear equations. The examples here are many, and all of them have been clearly solved step wise. So, if you get lost along the way, you can easily retrace your steps up until the place where you had understood.

Learn how to draw a graph.

Let us say that you have understood how to solve linear equations, you can never stop there, that is, if you want to score all the marks for that question. Normally, all linear equations lead to values that can be used to draw a graph. Drawing a graph at some point may even earn you more marks than getting the solution of the equation given.

Again, QuickMath will take you through all the steps that are there to draw a graph. I will encourage students or whoever wants to draw a graph, to go through the provided steps. That way, he or she will have a clear understanding of drawing linear graphs. Tutors and lecturers can take advantage of this site too to gain more knowledge on graphs. Once you are satisfied that you can draw graphs, you can use the first example I gave above. Make sure that you solve it and then draw a graph afterward. Will check you sometimes answer later.

So, for tutors and lecturers or teachers, good luck with the tutoring/teaching /lecturing the students! While for the students, all the best in sitting for that math Continuous Assessment Test (C.A.T) or that final exam!