Monday

December 22, 2014

December 22, 2014

Posted by **Cody** on Monday, May 28, 2007 at 11:10am.

The problem is 3y = 2x + 12

My Work:

0=2x+ 12

--------

2 2

x=6

You cannot solve this equation. It has 2 unknowns.

I can't seem to do this problem. And my grade is riding on it. Can someone please help? I don't know how to solve it. Can someone help me by telling me what I'm doing wrong?

The problem is 3y = 2x + 12

My Work:

0=2x+ 12 How and/or why did you eliminate y from the equation.

--------

2 2

x=6

A ssuming you are seeking integer answers.

1--3y - 2x = 12

2--Dividing through by 2 yields y + y/2 - x = 6

3--y/2 must be an integer k mking y = 2k

4--Substituting back into (1)0 yields 6k - 2x = 12 making x = 3k - 6

5--CLearly, without any other conditions imposed by the problem statement, there are an infinite number of answers.

6--k...0...1...2...3...4...5...6..

...x..-6..-3...0...3...6...9..12..

...y...0...2...4...6...8..10..12..

Subjects

Art

Business

Computers

English

Foreign Languages

Health

Home Economics

Mathematics

Music

Physical Education

Science

Social Studies

Features

Contribute

Download

Experts

Forum

Job Openings

Homework Tips

Libraries.Jiskha

Link to Us

Reference

School Supplies

Search

Homework Help Forum: Math

Current Questions | Post a New Question | Answer this Question | Further Reading

Posted by tchrwill on Monday, May 28, 2007 at 1:22pm in response to Math.

download mp3 free instrumental remix

I can't seem to do this problem. And my grade is riding on it. Can someone please help? I don't know how to solve it. Can someone help me by telling me what I'm doing wrong?

The problem is 3y = 2x + 12

My Work:

0=2x+ 12 How and/or why did you eliminate y from the equation.

--------

2 2

x=6

A ssuming you are seeking integer answers.

1--3y - 2x = 12

2--Dividing through by 2 yields y + y/2 - x = 6

3--y/2 must be an integer k making y = 2k

4--Substituting back into (1) yields 6k - 2x = 12 making x = 3k - 6

5--Clearly, without any other conditions imposed by the problem statement, there are an infinite number of answers.

6--k...0...1...2...3...4...5...6..etc.

...x..-6..-3...0...3...6...9..12..etc.

...y...0...2...4...6...8..10..12..etc.

http://www.jiskha.com/display.cgi?id=1180111741

http://www.jiskha.com/display.cgi?id=1180111741

- Math -
**moose**, Monday, January 5, 2009 at 9:23pmoh this is easy just...wait i have my own homework to do and i don't even know you

- woqlu ugzibq -
**woqlu ugzibq**, Saturday, January 17, 2009 at 1:56amyzqmu swonezhxg bywxh bgdvahl crhfkdeu ctpysream xzpv

- amwfs avgr -
**amwfs avgr**, Thursday, February 5, 2009 at 4:55amsgxkmqc omgfeyhw mwvsgfhc ezrvyc jesfpktqr hlzwp zavkm

**Answer this Question**

**Related Questions**

Algebra - Please Solve: 4-x=-5 I thought the answer was -9 but that doesn't seem...

math - can someone help me solve this problem -x/2+4=12 i got x=-16 but that ...

Algebra II- please help! - I just cannot seem to be able to grasp the concept of...

Algebra 1 - Can someone help me solve this problems please? Thank you very much ...

MATH * - 0=-16t^2+80t+96 Solve for t. Can someone please show me the steps on ...

math - Can someone please help me with this word problem!?! I know the answer ...

8th grade math - I have no idea how to solve this problem. Can someone help me...

Math - Can someone please help with this problem? Solve by the elimination ...

math - a rectangle is to be inscribed under the arch of the curve y = 2cosx from...

Math - Solve for x: x^4-15X^2+14=0 How would I solve this problem? Could someone...