mylesthejefe
mylesthejefe
16-08-2016
Mathematics
contestada
If -a=b and a+c=d then b+c=d
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WorldlyGlass49
WorldlyGlass49
16-08-2016
This is incorrect
-a = b
a + c = d
b + c = d is incorrect because it says a + c and not -a + c.
If you multiply the first line with -1 then you would get a = -b
So the final line would actually be -b+c=d
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