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## #1 2006-05-20 12:52:18

Mathaphobe
Member
Registered: 2006-05-20
Posts: 18

### Help!

I am useing a saxon:
Algebra 1
an incremental development
second edition textbook and need a little help with
problem set 90 pg 323 problem 14:

solve by elimination:
14.)  7x+2y+3
3x-3y=9

i keep getting 27x=12 that cant be right.....

Last edited by Mathaphobe (2006-05-20 13:27:19)

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-An Incremental Development

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## #2 2006-05-20 13:37:18

liuv
Member
Registered: 2006-05-14
Posts: 29

### Re: Help!

21x+6y=9
6x-6y=18

27x=27

x=1

I'm from Beijing China.

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## #3 2006-05-20 13:43:55

Mathaphobe
Member
Registered: 2006-05-20
Posts: 18

### Re: Help!

Thanks i think i see what i did wrong i forgot to multipliy the 9 and the 3 after the = sign

Do you like my new avatar? (even if you don't i do )
(it's victor from oh my gods)
-An Incremental Development

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## #4 2006-05-20 13:51:38

liuv
Member
Registered: 2006-05-14
Posts: 29

### Re: Help!

I'm from Beijing China.

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## #5 2006-05-21 03:47:40

Mathaphobe
Member
Registered: 2006-05-20
Posts: 18

### Re: Help!

Little help with this one....

(2x-5x+4)divide by(x+2)
-thanks

Do you like my new avatar? (even if you don't i do )
(it's victor from oh my gods)
-An Incremental Development

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## #6 2006-05-21 13:28:27

liuv
Member
Registered: 2006-05-14
Posts: 29

### Re: Help!

Last edited by liuv (2006-05-21 13:31:26)

I'm from Beijing China.

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## #7 2006-05-22 23:38:06

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

### Re: Help!

Ate answer depends on what do you want-do you need it factored or simplified (as liuv did) or what?

IPBLE:  Increasing Performance By Lowering Expectations.

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