Question

please help I need help ! medal and fan HELP !!!!

Answer 1

3x + 2y = 16,
x + y = 4

Which numerical values could you multiply the second equation by to eliminate a variable? Select all that apply.

1)2
2)–2
3)3
4)–3
5)4
6)–4

Answer 2

@Kdr1308

Answer 3

@benlindquist

Answer 4

@MrHirohito

Answer 5

Hey...im on break rn so...do @mathmale

Answer 6

help? :/

Answer 7

Let me guess. 9th grade Algebra 1?

Answer 8

Yeah, i think so too

Answer 9

Yes

Answer 10

Ahhhh. Okay. I have a question.

Answer 11

?

Answer 12

Do you know what the Elimination and Sublimation methods are?

Answer 13

I don't really understand it, which is part of why I asked for help

Answer 14

@AloneS

Answer 15

Yes?

Answer 16

Basically you are trying to plug in numbers so it will equal the first equation.

Answer 17

pick a variable

Answer 18

x @Warriorz13

Answer 19

Okay so you are trying to get rid of x

Answer 20

Okay I don't really know how to do that xD

Answer 21

@Warriorz13

Answer 22

Yea im here...
I got lost, I hope a friend can help you. @KamiBug

Answer 23

?

Answer 24

They probably won't

Answer 25

You there @KamiBug

Answer 26

Yeah :) @winsteria Did you try each option to see which one got rid of a variable when you use the elimination method?

Answer 27

I don't really know how to do that method very well :/

Answer 28

Me either XD I like substitution better haha. But let's try it :)

Answer 29

okay :)

Answer 30

?

Answer 31

@Gabylovesyou

Answer 32

So since we could add or subtract in the elimination method...
For subtraction we'd wanna use the same number as one of the coefficients.
For example, if you wanna cancel the number 5, we'd do 5 minus another 5 :D
For addition, we'd wanna use the opposit of the coefficient.
For example, 5+(-5) = 0

Answer 33

And we know that options 5) 4 and 6) -4 aren't right because those aren;t next to any variables...

Answer 34

So maybe one of the options are 4) -3

Answer 35

That's right. :)