tolong dijawab yaaa please lagi mumet nih please ????

Kelas 8 Matematika
Bab Aljabar

5/(x + 5) - (3 + x)/7 = 0
(5 . 7 - (x + 3) (x + 5))/(7 (x + 5)) = 0
35 - (x² + 5x + 3x + 15) = 0
35 - x² - 8x - 15 = 0
x² + 8x - 20 = 0
(x + 10) (x - 2) = 0
x + 10 = 0
x = -10

x - 2 = 0
x = 2

5(7) - {(3+x)(x+5)}
------------------------- =0
       (x+5) (7)

35 - {x^2 + 8x + 15}
---------------------------- =0
         (7x + 35)

-x^2 - 8x - 15 + 35
------------------------- =0
       (7x + 35)

-x^2 - 8x + 20
------------------- =0
    (7x + 35)

(x+10) (-x+2)
------------------ =0
   (7x + 35)

x = -10 ; x = 2 ; dan x tidak sama dengan -5

Maaf kalau salah