18. Remove the parentheses from the following expression, and combine like terms: (a + b – c) + 3a – 2c
2 answers:
For this case we have the following expression:

We eliminate parentheses:

We add similar terms:

We have that equal signs are added and the same sign is placed, while different signs are subtracted and the sign of the major is placed, then:

Answer:

Option B
Combine (or subtract) like terms.
a + b – c + 3a – 2c
4a + b – 3c <-------------------Answer
So, Choice B.
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