mhernande
mhernande
22-02-2017
Mathematics
contestada
From 4a + 7b - 12c subtract 8a - 9b + 12d.
Respuesta :
charlottekrist
charlottekrist
22-02-2017
4a+7b-12c-8a-9b+12d
Now you have to combine like terms, so a and a, B and B etc.
4a-8a=-4a
7b-9b=-2b
No more like term
-4a-2b-12c+12d
Have a nice day
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