If you want to know how to solve a linear equation, you should start by learning how to eliminate the variable in the equation. However, sometime they may be different variable and different equations that you have to solve for. Solving of the linear equation with one variable is about isolating the variables but solving the linear equation is more than isolating the variables on one side and solving different variables at once. With such equations, you can have two equations with two variables and three equations or three variables. The system of the two linear equations with the two variables; has y and x. Sometime an equation may have three linear equation with three variables. The system of the equation is found at grade eleven levels with a high algebra topic. However, the method is the same to the method found above. You can find the equation that has three variables such as X, Y with Z. These are a just different system of the linear equation with two different common type systems that have been discussed. You will find three different methods that you can use in solving these problems. The graphing method used to solve the linear equation. The method requires drawing a graph for every equation and analyzing a graph in order to get the solution. The graphing may be done in three different ways. Graphing of the tabular method or graphing by using the intercepts and the use of the graphing of the equation by finding the y-intercept on the slope.
The system of the equation is known as linear since it has some degree of the equations. When it is drawn at the grid; it will make a straight line. This is why the graph at that has degree one is known as the linear equation. Substitution method: it is the method that involves getting the value of one variable in the form of other variables which substitute the value but in other equation of a system Elimination method: it is the most common method and it is the easiest in solving system of the equation. In the method, the coefficient with same variables will have the equation made to look the same, and then equations get subtracted in order to get rid of such variables, and this will result in solving the equation and to find which value at another variable. To be able to use this method, students will have to know how to subtract and to add the polynomials which involve two and three variables. When using the elimination method, then the coefficient of variables that look the same is used on the two equation, and they are subtracted in order to eliminate a variable. Resultant of the variable will involve on a variable which may be simplified much easier. You have to consider two different equations within the linear system and the variables of x and y. The system approach can be used to eliminate any linear equation through the elimination of many variables. These are three methods that you can use in solving a linear equation.
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