answersLogoWhite

0


Best Answer

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

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you use the substitution method using x and y?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

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 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 is the derivative of -cscxcotx?

Using the u substitution method of derivation (selecting sinx as u and cosxdx as du), you get f'(x)=cscx.


What is the answer to this math problem using the substitution method y x - 2 y2x - 8?

If you mean: y = x-2 and y = 2x-8 then it works out that x = 6 and y = 4


Solve the equation by substitution method x-y equals 5?

x+y=5


Solve using substitution x minus y equals 2 and x plus y equals -4?

-2


Use the substitution method to solve the system of equations Choose the correct ordered pair?

2x+7y=29 x=37-8y


How do you solve Linear Equations with the substitution method?

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.


Use the substitution method to solve the system of equations Choose the correct ordered pair 2x plus 3y equals 13 x equals 2?

(2,3)


Is it true or false that when using substitution is it best to start by solving the second equation for x?

If it's a simultaneous equation in x and y variables then x or y may be solved before substitution.


What is y6x plus 11 y2x plus 7 in substitution method?

If you mean: y = 6x+11 and y = 2x+7 Then by substitution: x = -1 and y = 5


How would use solve the system of equation x plus 3y equals 23 by using substitution?

You'd need another equation to sub in