answersLogoWhite

0

Typically in these math questions you will have two equations.
Both equations will have, lets say an x and y value. Two unknown variables.

Take the first equation and rearrange it so that you isolate one of the variables, lets say x.
To isolate x, arrange the equations so that x is on one side, and every other number is on the other.

This expression is equal to x.

Take this expression (all the numbers on opposite side of the side where the x is), and plug it into the second equation. That it, where ever the x appears in the second equation, replace it with this expression.

Solve for y through simple algebra.

Now, take the y value you solved for and plug it into one of the original equations. That is, replace the y in the equation with this number. Solve for x through algebra.

The x and y values you receive are known as the solution.

User Avatar

Wiki User

16y ago

What else can I help you with?

Related Questions

What is Solve By Substitution y0.5x 2 -y-2x 4?

To solve the following equation by substitution, we need to have the equal sign. This will help us group the knowns and the unknowns.


How do use substitution when solving system of equations?

You use substitution when you can solve for one variable in terms of the others. By substituting, you remove one variable from the equation, which can then be solved. Once you solve for one variable, you can use substitution to find the other.


What are three ways to solve a system?

elimination, substitution and graphing


To solve a three variable system of equations you can use a combination of the elimination and substitution methods?

True. To solve a three variable system of equations you can use a combination of the elimination and substitution methods.


Use the substitution method to solve the system of equations Enter your answer as an ordered pair?

Use the substitution method to solve the system of equations. Enter your answer as an ordered pair.y = 2x + 5 x = 1


How can you solve a linear equation?

by elimination,substitution or through the matrix method.


If you were to solve the following system by substitution what would be the best variable to solve for and from what equation?

To determine the best variable to solve for in a system of equations by substitution, look for the equation that allows you to isolate a variable easily. Typically, choose the equation where one variable has a coefficient of 1 or -1, or is already expressed in terms of the other variable. This makes substitution straightforward and minimizes complexity in calculations. Once identified, you can solve for that variable and substitute it into the other equation.


How do you solve a problem using the substitution method?

You solve this by theoretically diverting the hypotenuse of the x divided by the overall beneficial procedure of y


What 4x y14 and 2x y8 solve using substitution?

You cant solve it unless it is an equation. To be an equation it must have an equals sign.


How do you find the y coordinate for a given x by substitution?

sub x with 0 and solve


How do you solve a problem using substitution?

y=2x+9 and y=x+6


Solve the system by substitution x= 5 - y x-y=3?

2