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Simplify: -0.8b + 4.1c -(-3.2b) - 0.1c

A) -2.4b + 4c
B) 2.4b + 4c
C) 2.4c + 4b
D) 2.4b - 4c

12 answers

-0.8b + 3.2b

4.1c - 0.1c

Combine those terms.
We can only add "like" terms, so the b's go together and the c's go together

-0.8b + 4.1c -(-3.2b) - 0.1c
= -0.8b + 4.1c + 3.2b - 0.1c
= 3.2b -.8b + 4.1c - .1c
= 2.4b + 4c
2.4b+ 4c d?
Can you also check my student survey plz?
Where did you get d?
-0.8b + 3.2=2.4 (b) 4.1c - 0.1=4 (c)
What does 10.8 (b) what does (b) mean and (c)
Didn't you read Reiny's response? He gave you the answer!
And look at Reiny's post:
We can only add "like" terms, so the b's go together and the c's go together

-0.8b + 4.1c -(-3.2b) - 0.1c
= -0.8b + 4.1c + 3.2b - 0.1c
= 3.2b -.8b + 4.1c - .1c
= 2.4b + 4c
B and C are the unknown numbers that are multiplied.

Example:

2x = 6
x = 3
It's B! Right?
Can you check my HELP PLZ post and my student survey plz?