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You just plug in the value of the given variable. For example:

y=3+2

2y=x (now you substitute y for 3+2)

2(3+2)=x (now solve the equation using distributive property)

6+4=x

10=x

Tuhduh!! All done using the substitution property.

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Related Questions

What is the disadvantage of using the substitution method in solving linear equations rather than the graph method?

There are no disadvantages. There are three main ways to solve linear equations which are: substitution, graphing, and elimination. The method that is most appropriate can be found by looking at the equation.


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There are several methods to solve linear equations, including the substitution method, elimination method, and graphical method. Additionally, matrix methods such as Gaussian elimination and using inverse matrices can also be employed for solving systems of linear equations. Each method has its own advantages depending on the complexity of the equations and the number of variables involved.


How do you decide whether to use elimination or subsitution to solve a three-variable system?

There is no simple answer. Sometimes, the nature of one of the equations lends itself to the substitution method but at other times, elimination is better. If they are non-linear equations, and there is an easy substitution then that is the best approach. With linear equations, using the inverse matrix is the fastest method.


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How can you solve a linear equation?

by elimination,substitution or through the matrix method.


What are two symbolic techniques used to solve linear equations?

Elimination and substitution are two methods.


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You would solve them in exactly the same way as you would solve linear equations with real coefficients. Whether you use substitution or elimination for pairs of equations, or matrix algebra for systems of equations depends on your requirements. But the methods remain the same.


What are two symbolic techniques used to solve linear equations and which do you feel is better?

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Can solve a system of linear equation by substitution?

Yes, a system of linear equations can be solved by substitution. This method involves solving one of the equations for one variable and then substituting that expression into the other equation. This process reduces the system to a single equation with one variable, which can then be solved. Once the value of one variable is found, it can be substituted back to find the other variable.


What are the ways to solve a system of linear equations in two variables?

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How do i solve yx-1 and x y3 with substitution step by step?

http://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.121634.html visit.