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

-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