$cars = [
['name' => 'Такси 1', 'position' => rand(0, 1000), 'isFree' => (bool) rand(0, 1)],
['name' => 'Такси 2', 'position' => rand(0, 1000), 'isFree' => (bool) rand(0, 1)],
['name' => 'Такси 3', 'position' => rand(0, 1000), 'isFree' => (bool) rand(0, 1)],
['name' => 'Такси 4', 'position' => rand(0, 1000), 'isFree' => (bool) rand(0, 1)],
['name' => 'Такси 5', 'position' => rand(0, 1000), 'isFree' => (bool) rand(0, 1)],
];
$passenger = rand(0, 1000);
Как вычесть значение $cars[0]['position'] из переменной $passenger и вывести в echo?