A1 c) va rog mult...E urgent

Răspuns:
(vx -2)×(vx-7)=(vx-6)×(vx-4)
x-7vx-2vx+14=x-4vx-6vx+24
-7vx-2vx+14= -4vx-6vx+24
-9vx+14= -10vx+24
-9vx+10vx=24-14
vx=10
×=100