How do you solve the system of equations x+y=14 and -x+y=16?
1 Answer
Apr 4, 2018
Explanation:
The end goal is to get an equation in terms of one variable, which can be solved.
We can solve using substitution. We'll need to pick one of our equations and solve for
This is a nice system, solving for either variable in either equation will be equally easy. Let's take
Now, we can replace all
To solve for
Thus,