What is the tension in the string?

An 8.0 kg block (X) on a table is attached by a sting that runs over the edge of the table and is attached to a hanging 4.0 kg m (Y). The magnitude of the force of friction on X is 24 N. What is the tension in the spring (in newts)? ume gravity is 9.81 [down] and the force of friction between the string and the table and the weight of the string itself is negligible.