Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it using the method you chose.

x – 5y + 2z = 0
x + 4y – z = 12
2x – y + 3z = 10

Question

Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it using the method you chose. 

x – 5y + 2z = 0
x + 4y – z = 12
2x – y + 3z = 10

anonymous · Answer

Dosent have to be long.

anonymous · Answer

It may not have to be long, but I'm sure it has to be your own words. Do you have a question about solving this system of equations?

anonymous · Answer

http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut50_systhree.htm

usarmy3947 · Answer

ok i have the answer but there will be a medal right?

anonymous · Answer

yes there will be

usarmy3947 · Answer

x – 5y + 2z = 0
x + 4y – z = 12
2x – y + 3z = 10 
:
Look at the equations, see if we can find a multiplier for one of the equations
that will eliminate two variables at the same time
:
There is! Multiply the last equation by -1 and add all three equations

 
x – 5y + 2z = 0
x + 4y – z = 12
-2x +y -3z = -10
----------------------Addition eliminates x and y, find z
0 + 0 - 2z = 2
Multiply by -1
2z = -2
divide both sides by 2
z = -1; they only asked for 1 variable

usarmy3947 · Answer

did this help?

usarmy3947 · Answer

thx you nice helping u puertoricangirl96

usarmy3947 · Answer

is there another question?

anonymous · Answer

no.

usarmy3947 · Answer

oh ok thx anyway if i can be of any further assistance just message me

usarmy3947 · Answer

Que tengan un buen día señorita.