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The problem: y=1/2x-2/3

I am coming up with: -1/2x+y=-2/3

The "answer" is suppose to be: 1/2x+y=-2/3

Why would you not keep the (-) sign in front of the 1/2x?

2007-04-23 16:15:15 · 5 answers · asked by shonsmo 1 in Science & Mathematics Mathematics

If I multiply "MY" answer by a (-), wouldn't my answer be: 1/2x+y=2/3? With NO negative 2/3? But they are giving the answer as a negative 2/3.

2007-04-23 16:28:22 · update #1

5 answers

Your answer is correct, but some texts prefer that the leading coefficient be positive.

So.. 1/2x - y = 2/3 is also correct

The answer you've listed as the 'correct' answer is incorrect.

2007-04-23 16:23:00 · answer #1 · answered by suesysgoddess 6 · 1 0

If the problem is: y=1/2x-2/3 and

The "answer" is suppose to be: 1/2x+y=-2/3

There is no way that the second equation is equivalent to the first. The second equation may have a typo, but it certainly needs the "-" (minus sign) left / in-front of the 1/2 in order to be equivalent to the first / top-equation-problem.
- - - - - - - -
"Convert this linear equation to it's alternate form...? "

There's some confusion when you refer to an answer.
I assume you're asking for AN (instead of IT'S) alternate form of the original/top equation. There are many alternate forms which would still be equivalent to the original equation.

2007-04-23 23:28:29 · answer #2 · answered by answerING 6 · 0 0

The correct answer is 1/2x-y=2/3
Your answer is the same thing, only alot of textbooks, prefer the first term be positive. To do this we multiply everything by negative 1.

2007-04-23 23:18:47 · answer #3 · answered by leo 6 · 0 0

I don't understand either because, as far as I can see, you did this problem right: are you sure that you copied the problem down correctly?

2007-04-23 23:19:59 · answer #4 · answered by bruinfan 7 · 0 0

the answer is wrong

2007-04-23 23:19:37 · answer #5 · answered by Anonymous · 0 0

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