Question

Part 1:
Solve the following system of equations. Please show your work to receive full credit.
x - y = 19
2x + y = 2

Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice.

Answer 1

Elimination:
x-y=19
2x+y=2 +
-------
3x=21
x=7
Then substitute x into the first equation
7-y=19
y=-12

Check
2(7)+(-14)=12
It works

Answer 2

thank you!