Question

Решите систему уравнений {█([email protected] +2y=16.)┤

Answer 1

7х -3y = - 1
3x + 2y = 16
Решение
2y = 16 - 3x
y = 8 - 1,5x
7x -3( 8 - 1,5x ) = - 1
7x - 24 + 4,5x = - 1
11,5x = 23
x = 2
y = 8 - 3 = 5
Ответ ( 2 ; 5 )