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# Help with simultaneous equations

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1. Could someone please tell me where I went wrong on question C? When I plug x and y into equation 1 I get 19 but I don't get 27 for some reason when I plug x and y into equation 2?
2. (Original post by JackT2000)
Could someone please tell me where I went wrong on question C? When I plug x and y into equation 1 I get
Here is the question which I scanned in
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3. Simultaneous Equations.pdf (203.5 KB, 9 views)
4. You subtracted the Y terms the wrong way round.
5. (Original post by JackT2000)
Here is the question which I scanned in
Should be -2y=-8

6. you minus the second equation from the first which means for '19' and '27' you should do the same
19-27=-8

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Updated: September 18, 2016
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