Fill the empty slots by dragging tiles from the left to show the next step for solving the equation.

Solve the two-step equation
-9x + 0.4 = 4

1. Which operation must be performed to move all the constants to the right ride of the equation?

A. Add 0.4
B. Add 4
C. Subtract 0.4
D. Subtract 4

2. Then, which operation must be performed to isolate the variable?

A. Add -9 on both sides.
B. Subtract -9 on both sides
C. Multiply by -9 on both sides
D. Divide by -9 on both sides

3. The solution to the equation is x =

A. -4
B. -0.4
C. 0.4
D. 4