Question

6.03] What is the value of the x variable in the solution to the following system of equations?

3x + 2y = 8
2x + 3y = 2

4

−2

x can be any number as there are infinitely many solutions to this system

There is no x value as there is no solution to this system

Answer 1

do you know elimination?

Answer 2

no

Answer 3

ok then i'll try to explain it to u...

Answer 4

2(3x+2y=8)
3(2x+3y=2)

multiply that out then tell me what u get...

Answer 5

hi uri...

Answer 6

@Kylo744

Answer 7

had to fined something to write with

Answer 8

oh ok...lol

Answer 9

yup!
thanks uri:)

Answer 10

waittt

Answer 11

k..

Answer 12

6x+4y=16
6x+9y=9

Answer 13

ok now the x cancel...then subtract the 4 and 9 and the 16 and 9...then divide your answer and u get y...

Answer 14

then u just plug y in for one of the ORIGINAL equations and solve for x...
does that help?

Answer 15

x can be any number as there are infinitely many solutions to this system

Answer 16

yup!
GOOD JOB!!

Answer 17

thank u for your help

Answer 18

np....let me know if u need help with something else..

Answer 19

6.02] Carlos solved the system of equations below. What mistake did he make in his work?

2x + y = 5
x − 2y = 10

y = 5 − 2x
x − 2(5 − 2x) = 10
x + 10 + 4x = 10
5x + 10 = 10
5x = 0
x = 0

2(0) + y = 5
y = 5

He should have substituted 5 + 2x

He did not distribute correctly

He combined like terms incorrectly, it should have been 4x instead of 5x

He made no mistake

Answer 20

give me like 5 seconds:)
I actually need to write this one out:D

Answer 21

he didn't make a mistake...trick question:)

Answer 22

waiiittt!

Answer 23

I don't think he distributed properly...he used substitution so im not sure but I think that's right:)

Answer 24

He did not distribute correctly

Answer 25

ok..cool!
I was right:)

Answer 26

im leah btw!

Answer 27

just message me if anything else...lol

Answer 28

Help me with one more

Answer 29

ok

Answer 30

6.03] If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step?

x − y = 6
4x − 3y = 12

Add the two equations together

Multiply the first equation by −4

Multiply the first equation by 3

Multiply the first equation by −3

Answer 31

whats 4+-3?

Answer 32

1

Answer 33

thanks for fanning me btw:)
oh yeah duh:)

Answer 34

the second one...I had to work it out first:)

Answer 35

ok thank u

Answer 36

np! I had fun...im like into way more complicated stuff soooo this was a relaxing thing:)

Answer 37

welcome to OS!!!!