Question

Help don't know what to mulitply

Answer 1

i'm suppose to use elimanation

Answer 2

solve for x or y first so multiply either the 4 to the top and 7 to the bottom to cancel the x's out and solve for y or multipy by 7 to the top and 2 to the bottom to cancel out the ys and solve for x

Answer 3

yes

Answer 4

kay thanks @fiberdust

Answer 5

take the top one 7, then make it negative -7, then multiply the bottom row
take the bottom one 4, then multiply it to the top row.

Answer 6

then you will have x cancel.

Answer 7

so 7x will become 28x?

Answer 8

and 4x becomes -28x

Answer 9

yeah meant to say - 7 and 4 or -4 and 7

Answer 10

Then you can just the rows.

Answer 11

kay so y=2

Answer 12

and x=1

Answer 13

Correct

Answer 14

awesome okay how bout this one? i got -3x=-7

Answer 15

Multiply top row by bottom number (in front of x)
Multiply bottom row by opposite (negative) or top number (in front of x)

Answer 16

This general rule will always work.

Answer 17

can't you just get rid of y? then solve for x?

Answer 18

u should get y = 3 and x = 5

Answer 19

yes should get -3x = -15 then x = 5

Answer 20

You can do whatever you want. I actually didn't look at the problem and just gave you general method.

Answer 21

lol

Answer 22

Question: What is that in your profile picture?

Answer 23

Hedghog, i love them; they are so cute!

Answer 24

Yes yes they are XD...

Answer 25

haha

Answer 26

ok confused @fiberdust

Answer 27

sorry didn't mean to confuse u

Answer 28

lol so you subtract or add the ='s too?

Answer 29

thank you @fiberdust and @wio

Answer 30

u add the rows after elimination step has been done. (u multiply one of the rows by a negaive if the two rows are same sign). for example, -4y + 4y will cancel so u can just add the rows.

Answer 31

oh.. thankyou >.<

Answer 32

you sound like a math teacher @fiberdust

Answer 33

your welcome, hopefully i unconfused u. yes i'm in pursuit to become one ty

Answer 34

lol really? asl?

Answer 35

Cheers to fiber's dreams!

Answer 36

CHEERS!

Answer 37

i'm older so not ur typical age college student lol thxs from indiana male

Answer 38

cool, 30's? or older, younger?

Answer 39

yeah 30s

Answer 40

cool, it's good for people to do what they love no matter how old or young, unless it's like acid haha

Answer 41

I am a random teenager...follow me on G+ XD
https://plus.google.com/u/0/101593494385577144669/posts/p/pub

Answer 42

im a random teen too!

Answer 43

i don't look it though i fit in mostly .... true i always planned on teaching when i got older thought it would be in my 40s but i'm glad i'm pursuing now. When i was in third grade i knew i wanted to become a teacher in life.

Answer 44

wow, i hope i have your courage to become a phtographer and horse trainer

Answer 45

you will make it especially if u work towards it... women can multitask better so it wouldn't surprise me one bit if ur able to do both.

Answer 46

lol thanks

Answer 47

your welcome, well just holler at me if u need help with any more math questions. I'll try and help but i don't know it all. laterz

Answer 48

bye laterz really? jk

Answer 49

hi wio

Answer 50

hi @wio

Answer 51

Hi, did you finish?

Answer 52

yes

Answer 53

now i am subtituting(sp?)

Answer 54

okay

Answer 55

solutions to a quadratic equation is finding zero right?

Answer 56

yes

Answer 57

thnxs

Answer 58

okay so can you help me with this?

Answer 59

You need to use quadratic formula

Answer 60

Otherwise, try to factor.

Answer 61

okay thanks