Question

Алгебра (x=9+v
( x-2v+2=5
Фотку прикрепил


X=
V=

Answer 1

Ответ:

v=6

x=15

как-то так))))

Answer 2

$\left \{ {{x =9+v} \atop {x-2v+2=5}} \right. \\\left \{ {{x =9+v} \atop {9+v-2v=3}} \right. \\9-v=3\\-v=-6\\\left \{ {{v=6} \atop {x=9+6}} \right.\\\left \{ {{v=6} \atop {x=15}} \right.$