Math
posted by Cody on .
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

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.
13y  2x = 12
2Dividing through by 2 yields y + y/2  x = 6
3y/2 must be an integer k mking y = 2k
4Substituting back into (1)0 yields 6k  2x = 12 making x = 3k  6
5CLearly, without any other conditions imposed by the problem statement, there are an infinite number of answers.
6k...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.
13y  2x = 12
2Dividing through by 2 yields y + y/2  x = 6
3y/2 must be an integer k making y = 2k
4Substituting back into (1) yields 6k  2x = 12 making x = 3k  6
5Clearly, without any other conditions imposed by the problem statement, there are an infinite number of answers.
6k...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

oh this is easy just...wait i have my own homework to do and i don't even know you

yzqmu swonezhxg bywxh bgdvahl crhfkdeu ctpysream xzpv

sgxkmqc omgfeyhw mwvsgfhc ezrvyc jesfpktqr hlzwp zavkm