Question

Which pair of systems will have the same solution?

Answer 1

Alright, so I know it's 1 and 2, because I used a graphing calculator, but I don't know WHY it's 1 and 2.

Answer 2

@confluxepic

Answer 3

@mayankdevnani

Answer 4

@pooja195

Answer 5

any ideas ?

Answer 6

Not really, I was using Desmos and found that System 1 and System 2 had the same solution: (3.455, 2.364). But I don't know why they're the same.

Answer 7

option A is correct

Answer 8

Can you please explain to me?

Answer 9

in system 1,
multiply the second equation by 2 and then add equation 1

Answer 10

tell me,what you get ?

Answer 11

Ohhh I get it now, thank you, I got 10x − 7y = 18. Thanks! :D

Answer 12

np