7х + 9х+32=272 5у+7у-24=204 24у-15у+47=1919 Решите пж♡♡♡

Решите задачу:

$7x + 9x + 32 = 272 \\ 16 x + 32 = 272 \\ 16x = 272 - 32 \\ 16x = 240 \\ x = 240 \div 16 \\ x = 15$
$5y + 7y - 24 = 204 \\ 12y - 24 = 204 \\ 12y = 204 - 24 \\ 12 y = 180 \\ y = 180 \div 12 \\ y = 15$
$24y - 15y + 47 = 1919 \\ 9y + 47 = 1919 \\ 9y = 1919 - 47 \\ 9y = 1872 \\ y = 1872 \div 9 \\ y = 208$