The incorrect step and with error is subtract 3 from both sides. Option 3
We have that the equation is;
-3/8 (-8-16d) + 2d= 24
multiply the values, we get;
-24 + 48d + 2d = 24
add the like terms
-24 + 50d = 24
50d = 48
d = 48/50
The other steps are;
Subtract 3 from both sides (However, the instruction mentions subtracting 3, but there is no number 3 in the equation.
Divide both sides by the equation by -14