<PRE><B>Question 20751</B>
Its just  a simple equation if you know each simple steps.

15/X + 9X-7/x+2=9
The best and easy way is to cross multtiply.
The equation will become- 15(x+2)+9x-7(x)=(x)(x+2}(9)
                            15X+30+9x^2-7x=(x^2+2X}(9)
                            15x+30+9X^2-7x=9x^2+18x
collecting like terms-   9x^2-9x^2+15x-7x-18x=-30
                                  15x-25x=-30
                                   -10x=-30
                                      x=-30/-10
                                      x=3

TO CHECK IF WE GOT THE RIGHT ANSWER
                   plug in (3) the value of x into the equation and the left hand side of the equation must equal to the rght hand side
lets see-
             15/x + 9x-7/x+2=9
           15/3+9(3)-7/3+2=9
                5 + 27-7/5 = 9
                5+20/5 = 9
                5+4 = 9
                 9 = 9
moruph osuolale,
central piedmont college,
charlotte,nc</PRE>