Question

Simplify the expression
7n - 4 + 3n

I have no idea how to work these problems

Answer 1

7n - 4 + 3n
= (7+3)n - 4
= 10n -4

Answer 2

Okay

Answer 3

7n and 3n are like terms, (both have n), which means you can add them together just like 7 + 3 = 10
so 7n - 4 + 3n
=10n -4
the 4 doesn't have an n so it remains.

Answer 4

The -4 I meant

Answer 5

Ok that helps a lot.
Thanks

Answer 6

I'm glad you got it your welcome :)

Answer 7

So I could add 5k = 4k the same way?

Answer 8

+

Answer 9

If there is an addition sign in between, yes, the same way.

Answer 10

Yes

Answer 11

Thanks