Nomer 22 kak please jawab

Nomer 22 kak please jawab

2x-3y+26=0
3y=2x+26
$y = frac{2x + 26}{3} \ {x}^{2} + (frac{2x + 26}{3} ) ^{2} - 4x + 6( frac{2x + 26}{3} ) - 104 = 0 \ {x}^{2} + frac{4 {x}^{2} }{9} + frac{104x}{9} + frac{676}{9} - 4x + 4x + 52 - 104 = 0 \ frac{13 {x}^{2} }{9} + frac{104x}{9} + frac{676 - 468}{9} = 0 \ 13 {x}^{2} + 104x + 208 = 0 \ {x}^{2} + 8x + 16 = 0 \ (x + 4 {)}^{2} = 0 \ x + 4 = 0 \ x = - 4 \ y = frac{2( - 4) + 26}{3} = 6 \ x- y = - 4 - 6 = - 10$
jawab: A