((64,98+?)•0,09):0,27=33,81

I don't know the exact solution to this equation in Russian, but I can guide you through the steps.

First, let's simplify the equation.

(64,98 + ?) • 0,09 = 33,81

To isolate the unknown variable, divide both sides of the equation by 0,09.

(64,98 + ?) = 33,81 / 0,09

Simplify the right side.

(64,98 + ?) = 376,6667

Now, subtract 64,98 from both sides to solve for the unknown variable.

? = 376,6667 - 64,98

The answer to the equation is the value of the unknown variable. Solve the equation and you will find the result.