To solve the equation 4.27( x - 6.56) = 10.4, the first step is to reverse the multiplication by dividing by 4.72. After dividing by 4.72, what number should be added to both sides ?

To solve the equation 4.27( x - 6.56) = 10.4 by reversing the multiplication, we need to divide both sides of the equation by 4.27.

After dividing by 4.27 on both sides, the equation becomes:
x - 6.56 = 10.4/4.27

In order to isolate x on the left side of the equation, we need to add 6.56 to both sides of the equation.

So, the number that should be added to both sides is 6.56.