How do you combine like terms in 5b-9+2b?

ye1neh4 2022-09-26 Answered
How do you combine like terms in 5b-9+2b?
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Answers (1)

Firetto8w
Answered 2022-09-27 Author has 8 answers
5b-9+2b
This expression has two types of terms: variable and constant. Variable terms have a "variable" or letter. Constant terms have only a numeral. Only terms of the same type may be "combined", which means added or subtracted.
Variable terms: 5b and 2b
Constant term: 9
To combine like terms, add the variable terms 5b and 2b. Think of this as adding 5 "b"s and 2 "b"s to get 7 "b"s.
The expression then simplifies to 7b-9
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