a=b+c-2
a=c-d+9
a=b-d+11
based on the system of equations above, what is the value of a?
(a) 2
(b) 9
(C) 10
(d) 11
(e) 20

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- anonymous

- katieb

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- anonymous

cheating for what? I don't know how to do this question so I'm posting. And you spelled "site" wrong.

- eyust707

Here we have 3 equations and 4 unknowns. I believe this problem is indeterminate.

- anonymous

i never said I want a straight answer. Do you have something against me? Why are you picking on me?

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## More answers

- eyust707

Are you sure you typed it in correctly?

- anonymous

Yep I did. this problem is from a sat practice book.

- anonymous

that's the whole problem. What happens if the person comes up with a different answer other than the choices?

- eyust707

The best I can do is give you a in terms of either b, c or d.

- anonymous

I tried that but it doesn't work out for some reason.

- eyust707

@lgbasallote any ideas?

- lgbasallote

@trenvilla 's good....

- lgbasallote

anyway...what did you try @eyust707 ?

- anonymous

@ tenvilla I wasn't even talking to you

- nincompoop

@trenvilla does not like Asians :P

- anonymous

agree

- lgbasallote

i think you failed to notice there are only 3 unknowns here since they're all equal to a

- anonymous

jeez people are so touchy these days
@sussycake there are more variables than equations here, so either there is a typo, one equation is missing, or the problem is posed incorrectly
you can solve for one variable in terms of others, but you cannot assign a number to the variables

- anonymous

when did people here get so uptight about the questions. take a pill

- sasogeek

the thread is ridiculous! facepalm.sigh

- anonymous

calm the math down, let's just help each other out, bros.

- anonymous

Ok, I got a=0, but that's obviously not right.

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