Question

Срочно даю 30 балов

Answer 1

Объяснение:

$2x + y = 73 \\ 3x + 2y = 131$

$- 4x - 2y = - 146 \\ 3x + 2y = 131$

$- x = - 15 \\ 2x + y = 73$

$x = 15 \\ y = 73 - 2x$

$x = 15 \\ y = 43$