y = 4x + 9 y = 6x - 5
4x +9 = 6x - 5
4x - 6x = - 5 - 9
-2x = - 14
x = 7
y = 4 * 7 + 9 = 28 +9 = 37
ответ : (7 ; 37)
y = 4x + 9 y = 6x - 5
4x +9 = 6x - 5
4x - 6x = - 5 - 9
-2x = - 14
x = 7
y = 4 * 7 + 9 = 28 +9 = 37
ответ : (7 ; 37)