SOLUTION: Add or subtract the following: 1) x-7/3 - 4/3 -----> on this I have either -11x/3 or 4x/3 2) 1/x + x+2/x --------> on this one I came up with 3x/x 3) 4x-3/x-7

SOLUTION: Add or subtract the following: 1) x-7/3 - 4/3 -----> on this I have either -11x/3 or 4x/3 2) 1/x + x+2/x --------> on this one I came up with 3x/x 3) 4x-3/x-7 - 2x+8/x-7

Question 102148: Add or subtract the following:
1) x-7/3 - 4/3 -----> on this I have either -11x/3 or 4x/3
2) 1/x + x+2/x --------> on this one I came up with 3x/x
3) 4x-3/x-7 - 2x+8/x-7 --------> here I am not sure but I got 2x-5/x-7
4) x^2/x+3 + 9/x+3 -------> here I don't understand how to use the power
5) x^2+2x/3x - x^2+5x+6/3x ------> this one I don't know at all :(
Thank you for your help.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Add or subtract the following:
1) x-7/3 - 4/3 -----> on this I have either -11x/3 or 4x/3
Ans: x-(10/3)
-----------------------
2) 1/x + (x+2)/x --------> on this one I came up with 3x/x
Ans: (x+3)/x
------------------------
3) (4x-3)/(x-7) - (2x+8)/(x-7) --------> here I am not sure but I got 2x-5/x-7
Ans:[4x-3-2x-8]/)x-7
=[2x-11]/(x-7)
----------------------
4) x^2/x+3 + 9/x+3 -------> here I don't understand how to use the power
Ans: [x^2+9]/(x+3)
-----------------------

5) (x^2+2x)/3x - (x^2+5x+6)/3x ------> this one I don't know at all :(
Ans: [x^2+2x-x^2-5x-6]/3x
= [-3x-6]/3x
= [-3(x+2)]/3x
= [-(x+2)]/x
======================
Cheers,
Stan H.

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