" alt=" \frac{x - 3 + x + 7} {(x + 7)(x - 3)} = 0 \\ \frac{2x + 4}{(x + 7)(x - 3)} = 0 \\ x = - 7 \\ x = 3 \\ 2x + 4 = 0 \\ x = - 2" />" />
1/х+7+1/х-3=0
х-3+х7
_______= 0 это дробь
(х+7)(х+3)
2х+4
-----------------------=0
2х+4=0
х=-2
" alt=" \frac{x - 3 + x + 7} {(x + 7)(x - 3)} = 0 \\ \frac{2x + 4}{(x + 7)(x - 3)} = 0 \\ x = - 7 \\ x = 3 \\ 2x + 4 = 0 \\ x = - 2" />" />
