Question

WILL MEDAL





I JUST WANT THE ANSWER



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

Answer 1

hello?

Answer 2

Just combine like terms

Answer 3

Duh @mhnigga

Answer 4

Alright, I'll tell you the answer, but I'm also going to walk you through it.
Combining like terms is a pretty simple, once you get the hang of it. If you don't understand how to combine like terms after this, just ask, okay? I'd be glad to lend a hand.

Okay, so your problem is:
-0.8b + 4.1c - (-3.2b) - 0.1c
First thing first, you can't add or subtract a number that doesn't share the same variables. So, we need to move the numbers around so that their variable match and we can add them. The variables here are "b" and "c".

We take our "b"s...
-0.8b - (-3.2b)
and our "c"s
4.1c - 0.1c

And now we can add or subtract regularly. (Note: When adding or subtracting equations with variables, the variables DO NOT change. You kinda just leave them alone.)
-0.8b - (-3.2b) =
2.4b

4.1c - 0.1c=
4c

Then we just stick the two of those together again:
2.4b + 4c

Which makes your answer: B) 2.4b + 4c
If you need any help, or need anything explained, please don't hesitate to ask. :)

~Blyue♥