Question

Tenglamalar sistemasini yeching
$7x + 4y = 29 5x + 2y = 19$
​

Answer 1

Решение:
4у(Зу-2)-6у(5+2y)
12у²-8у-30y-12y²
-38У-19 = 0
-38y = 19
y = – 19/38
==
y = − 1/2
Ответ: - 1/2
= 19
= 19