Question

Please help for a medal?!?!

Answer 1

Solve the system of equations by substitution. What is the solution for x?

2x + y = 1
4x + 2y = -1

Answer 2

heyy its me again

Answer 3

Is this algebra?

Answer 4

i see other people typing, do you still want my help?

Answer 5

@ImaGuest

Answer 6

ok so i would make the first equation something like y = mx + b. that would be y = -2x + 1. then substitute. 4x + 2(-2x + 1) = -1. then substitute. can you do the rest?

Answer 7

It's okay Samantha

Answer 8

Thanks though

Answer 9

do you know how to simplify the rest?

Answer 10

okay! tag me when you need help! :)

Answer 11

Hang on Ibb, I am reading your last reply

Answer 12

ok then

Answer 13

Do you add the -2x to the 4x?

Answer 14

yess

Answer 15

add the like terms

Answer 16

So than you subtract the 2 to the -1 to get 6x=-3?

Answer 17

@Ibbutibbu. ?

Answer 18

you distributed wrong, @ImaGuest . try again

Answer 19

Oh, forgot about the 1 in the parenthesis. 6x=-2?

Answer 20

no. you need to distribute this= 2(-2x + 1). what is the answer to that?

Answer 21

Oh, do you multiply the 2 to everything in the parenthesis?

Answer 22

yes good job!

Answer 23

So, -4x+2?

Answer 24

yes Great Work!

Answer 25

Is that it?

Answer 26

no. then you do this= 4x -4x + 2 = -1

Answer 27

x=-3?

Answer 28

no the answer is no solution. you subtract like terms. so what is 4x - 4x?

Answer 29

Oh, wait, no

Answer 30

Yeah I just realized my mistake

Answer 31

Yeah, my bad XD

Answer 32

ok lol so what is 4x - 4x?

Answer 33

0?

Answer 34

mood. so what is 0 - 2 = 1?

Answer 35

-2=1?

Answer 36

so that is...

Answer 37

No, wait

Answer 38

Oh, thought that wasn't right

Answer 39

So the answer would have to be no solution since there is no x-value

Answer 40

@Ibbutibbu. Is that correct? The answer choices are: A.) x = 0 B.) x = 2 C.) There is no x value as there is no solution. D.) x can be any value, as there is an infinite number of solutions.

Answer 41

the answer is C

Answer 42

Okay, so I was correct. Thank you for your time and help!