Question

resolver las siguientes sumas:
12ac-8ac-3ac=
2mn+6mn-5mn=
-3xy+7xy-xy+2xy=

Answer 1

Sumar.
12ac - 8ac - 3ac =
12ac - 11ac =
ac
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2mn + 6mn - 5mn =
8mn - 5mn =
3mn
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- 3xy + 7xy + 2xy =
- 3xy + 9xy =
9xy - 3xy =
6xy

Answer 2

12ac-8ac-3ac=ac
2mn+6mn-5mn=3mn
-3xy+7xy-xy+2xy=5xy