Asked by Donald

Combine like terms.

6b plus 7b-10=
Would I add 6b + 7b=13b-10
13b-10=3b?

Would this be correct? Please advise.
Answered by Ms. Sue
No.

You can't combine a term with an unknown with a term without an unknown.

6b plus 7b-10= 13b - 10

Answered by Donald
So would it just be 13b-10?
Answered by Ms. Sue
Yep.

Let's suppose that b = 3. 13b = 39
13b - 10 = 29

What would the answer be if b = 2?

Answered by Donald
I am sorry Ms. Sue I do not understand this.
Answered by Ms. Sue
You already posted the answer. What don't you understand?
Answered by Ms. Sue
b is an unknown number
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