No açougue de um supermercado foram vendidos 60 kg de carne bovina, o que corresponde a 40% do estoque. Quantos quilogramas haviam no estoque?

At the butcher shop of a supermarket, 60 kg of beef were sold, which corresponds to 40% of the stock. How many kilograms were in stock?

40% of x = 60kg

0.4x=60

find x