# Math Help - Adding and Subtracting Rational Expressions

2x-3 + 6x+5
x+1 x+1

and this

8 + 7
3x-5 2x+3

also this

2x+10
x-1 + 3
x+5 x-1
x2-1

2. ## Re:

RE:

I can't read any of your other questions, because of the notation. It is quite messy.

-qbkr21

3. Originally Posted by thebest
also this

2x+10
x-1 + 3
x+5 x-1
x2-1
ok, so that makes no sense. please retype

4. Here I kinda need help with this one too

x - 2
x2-4 x-2

2x+10
x-1 - 4
x+5 x+1
x2-1

5. Originally Posted by thebest
Here I kinda need help with this one too

x - 2
x2-4 x-2

2x+10
x-1 - 4
x+5 x+1
x2-1
your formatting method isn't working. whenever you type a lot of spaces, the forum truncates them, so it defeats the purpose. please retype your questions using parenthesis and "/" for division signs

6. Originally Posted by thebest
Here I kinda need help with this one too

x - 2
x2-4 x-2
Here

7. r+9/4 + r-3/2

2r+6/6

I think this is right

Do the six’s cancel?

8. Originally Posted by thebest
r+9/4 + r-3/2

2r+6/6

Do the six’s cancel?
Hello,

I assume that you mean:
Code:
r + 9   r - 3   r + 9   2(r - 3)    r+9 + 2r - 6    3r + 3
----- + ----- = ----- + -------- = -------------- = ------
4      2       4       4             4             4