Question

AB||DE solve For X
x = 19

x = 12

x = 9

x = 16

Answer 1

@AngelicDragon Do You Think You can Help Me Please ? (:

Answer 2

it should be :
12/(12+x-3) = 3/(3+4)
12/(x+9) = 3/7
cross product, giving us :
3(x+9) = 12 * 7
3x + 27 = 84
3x = 84 - 27
3x = 57
x = 57/3 = ... ?

Answer 3

18 ?

Answer 4

I Mean 19