How do you solve the following linear system: # 2x + 4y = 7 , 3x + y = 4 #?
Refer below for explanation.
First, arrange them like this so you can compare terms:
When we solve linear systems like this, we always look for ways to cancel one variable. We can see that if we multiply
We can now use this
Therefore our solution is
We can also look at the graph of these two equations, and confirm that they intersect at the point