1. X-6/6 -2 = x/3
2. (8x+4)(7-x) =0

1)
( ( x - 6 ) / 6 ) - 2 = x / 3
X - 6 - 12 = 2x
X = - 18
2)
( 8х + 4 )*( 7 - Х ) = 0
8х + 4 = 0
8х = - 4
Х = - 0,5
7 - Х = 0
Х = 7
Ответ 7 и ( - 0,5 )