How do you solve the system using the elimination method for 3x+y=4 and 6x+2y=8?
2 Answers
Any value of
Explanation:
Re-arrange the first equation to make
Substitute this for
This eliminates
You have
Explanation:
These two equations are related and represent 2 coincident lines; the second equation is equal to the first multiplied by
The two equations have
You can see this by multiplying the first by