How do you solve #4x+y=13# and #2x-y=5#?
1 Answer
Aug 1, 2015
Add the 2 equations together to get a third equation with the
Explanation:
[1]
[2]
Add [1] and [2] together
[3]
Divide both sides by
[4]
Substitute
[5]
Simplify
[6]
Subtract
[7]