Tolong dibantu no 27 dan caranya

Tolong dibantu no 27 dan caranya

$d. frac{4}{3}$

Penjelasan dengan langkah-langkah:

3/x + 8/y = -3 || × 1 || 3/x + 8/y = -3

4/x + 2/y = 9 || × 4 || 16/x + 8/y = 36

______________________________________ –

-13/x = -39

x = -13/-39

x = 1/3

3/x + 8/y = -3

$frac{3}{ frac{1}{3} } + frac{8}{y} = - 3 \ frac{8}{y} = - 3 - 9 \ y = frac{8}{ - 12} = - frac{2}{3}$

$2x - y = 2 times frac{1}{3} - ( - frac{2}{3} ) = frac{4}{3}$