x-8 x plus 4

___ = ________

3 2

If you mean

(x-8)/3 = (x+4)/2
then multiply by 6 to clear all the fractions:

2(x-8) = 3(x+4)
2x - 16 = 3x + 12
x = -28

check:
(-28-8)/3 = -36/3 = -12
(x+4)/2 = (-28+4)/2 = -24/2 = -12