Question

fanning + medal
Solve the following system of equations. Please show your work to receive full credit.
x - y = 13
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

First you solve for x. @HelloGoodmorning

Answer 2

x-y=13
y=x-13
putting y into 2x+y=2
2x+x-13=2
3x=2+13
x=15/3
x=5
y=-8

Answer 3

put x=13+y in eqn 2
2(13+y)+y=2
26+2y+y=2
3y=-24
y=-8
x=13+y
implies x=13-8=5
in this method i replaced one variable in one equation with the second one using one equation to transform my other equation into a single variable one which is much easier to solve

Answer 4

Let @HelloGoodmorning at least try. :)

Answer 5

Sorry i'm back

Answer 6

@giligails what does eqn mean equations?

Answer 7

yes

Answer 8

Alright thanks and thank you loveiskey

Answer 9

@satellite73 can you tell me what method giligails used please I believe it was subistitution