How do you solve the following system?: #2x-13y= 9 , 17 x + 2y = 6 #
In solving systems of linear equations, you can use the elimination method, substitution method or graphing. Using any of these three methods would yield the same answer so it is up to you to choose which method you are most comfortable with. However in this case, I would show the elimination method.
*graphing will not be done since it is difficult to show graphs using this medium and since it is difficult to determine the exact solutions if the values are not whole numbers.
So in this case, you are given:
You can either multiply the first equation by 17 and the second by 2 in order to eliminate
Adding the two equations to eliminate
Using the value of
You have two equations:
Use equation A to find the value of
Then use this value in equation B to replace
Finaly, use this value of