Ax + By = C
Since C is alone on one side of the equation, let's first solve for the "C" in our equation, which is the number that is not being multiplied by a variable: -(2/3)
y = (8/-3)x - (2/3)
Subtract (8/-3)x from both sides of the equation.
-(8/-3)x + y = -(2/3)
-(8/-3) = 8/3
(8/3)x + y = -(2/3)
Now....as it is..... A = 8/3 , B = 1 , and C = -2/3 .
But I think you want A, B, and C to be integers. So let's multiply through by 3 to clear the fractions.
8x + 3y = -2