3 years ago

From 4a + 7b - 12c subtract 8a - 9b + 12d.

1 answer:

7 0

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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