Answer:
x =

Explanation:
given
x - 8 + 3vx = y ( rearrange left side placing x- terms together )
x + 3vx - 8 = y ( add 8 to both sides )
x + 3vx - 8 + 8 = y + 8 ( simplify )
x + 3vx = y + 8 ← factor out x from each term on the left side
x(1 + 3v) = y + 8 ← divide both sides by 1 + 3v
=
, then
x =
