Question

Write a system of equations that can be solved efficiently by elimination. Explain what you would do to eliminate one of the variables. Then solve the system.

Answer 1

Let's make it easy:
x + y = 1
-x + y =3

You would just add the two equations and get the new equation:
2y = 4 ---> y = 2

Then plug in y for one of the previous equations
x + 2 = 1 ---> x =-1

Answer 2

It's called elimination because you eliminated the x term. Then you solved for y.

Answer 3

THANK YOU> OMG. <3

Answer 4

No problem. :)