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# Does this warrant marks?(Maths)

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1. I've been attempting some Edexcel New GCSE maths questions, and upon solving a question I happened to get a different (but similar) answer to the mark scheme, because there is more than one way of solving the question.

3r+7
------ = a
2-r

The difference in the methods was that I rearranged (ra) and (+7) instead of (3r) and (2a). Will I still get marks? The mark scheme does not mention my answer but I'm pretty adamant it's correct..
2. (3r-7)/(2-r) would be the only other correct answer. Yours is wrong, sorry.
3. (Original post by Alexion)
(3r-7)/(2-r) would be the only other correct answer. Yours is wrong, sorry.
Oh right thanks, looking back on my working I see where I went wrong.

But if I wrote that in an exam would I get marks (as its not on the mark scheme)?
4. You've made a mistake with the sign- you carried the 7 over but didn't change the sign hence you've got the wrong answer
5. (Original post by Gabzinc)
Oh right thanks, looking back on my working I see where I went wrong.

But if I wrote that in an exam would I get marks (as its not on the mark scheme)?
Whether you get any marks would probably depend on how many marks the question was- but I'd wager either 1 mark or none
6. (Original post by Poooky)
Whether you get any marks would probably depend on how many marks the question was- but I'd wager either 1 mark or none
I mean if I wrote 3r-7/2-r (which is also correct, not the mistake that I made)
7. (Original post by Gabzinc)
I mean if I wrote 3r-7/2-r (which is also correct, not the mistake that I made)
In that case you'd get full marks, both answers are the same (multiply your numerator and denominator by -1, you get the same answer as the mark scheme)
8. (Original post by Poooky)
In that case you'd get full marks, both answers are the same (multiply your numerator and denominator by -1, you get the same answer as the mark scheme)
Great! Thanks for all your help
9. (Original post by Gabzinc)
I mean if I wrote 3r-7/2-r (which is also correct, not the mistake that I made)
Yeah, if it's an equivalent answer you'd definitely still get the marks for it

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