<=> $\frac{x+2}{98} +1 + \frac{x+4}{96} +1 = \frac{x+6}{94} +1 + \frac{x+8}{92}+1$<=> $ \frac{x+100}{98} + \frac{x+100}{96} = \frac{x+100}{94} + \frac{x+100}{92}$
<=> $ ( x + 100 )(\frac{1}{98} + \frac{1}{96} - \frac{1}{94} - \frac{1}{92} )$
<=> x + 100 = 0
<=> x = -100