How do you solve the system of equations #x+y = 12# and #-10x+6y=-72#?
1 Answer
Apr 19, 2018
Explanation:
You can really do what method you want but for this time I'm going to use the subtraction method. Apply the following:
Now I extend the first term by 10.
Now take these terms plus eachother:
To get:
Divide 16 on both sides to get
Now put that into:
To get:
Minus three on both sides to get
Check your work by putting them into the equations to see that they are accurate.
Hope this helps.