Your equation is written in Russian, but it seems to be a mathematical expression involving variables x and y. The formula is B = (3x + y) / sqrt(x - 2y), where B is equal to 3x plus y divided by the square root of x minus 2y.
Your equation is written in Russian, but it seems to be a mathematical expression involving variables x and y. The formula is B = (3x + y) / sqrt(x - 2y), where B is equal to 3x plus y divided by the square root of x minus 2y.