Question

Выполнить сокращение
2x-1/x-y + x-4/x-y
8t+z/1-t - t-3/t-1

Answer 1

$frac{2x - 1}{x - y} + frac{x - 4}{x - y} =$ $frac{2x - 1 + x - 4}{x - y} =$ $frac{3x - 5 }{x - y}$
$frac{8t + z}{1 - t} - frac{t - 3}{t - 1} =$ $frac{8t + z}{1 - t} + frac{t - 3}{1 - t} =$ $frac{8t + z + t - 3}{1 - t} =$ $frac{9t + z - 3}{1 - t}$