Abstract: A slip-controlled brake system for automotive vehicles comprises a braking pressure generator (1) including a power brake booster (2) supplied with auxiliary energy, as well as of a master cylinder (3) directly connected thereto. The wheel brakes of the rear axle HA are connected to the power brake booster (2), while the front-wheel brakes communicate with the working chamber (16) of the master cylinder (3). For the purpose of brake slip control, inlet valves (EV) are inserted into the pressure fluid conduits to the wheel brakes, and outlet valves, (AV) are inserted into the pressure fluid lines from the brakes to a pressure supply reservoir (15).