Ответ:
( 4,5 : 7 )
Объяснение:
4х - y = 11 | * (-2) -8x + 2y = -22 -2x = -9
6x - 2y = 13 6x - 2y = 13 6x - 2y = 13
x= 4,5
y=7
-2x = -9 6x - 2y = 13
x= -9 / (-2) 6 * 4,5 - 2y = 13
x= 4,5 27 - 2y = 13
-2y = 13 - 27
-2y = - 14
y = -14 / (-2)
y = 7
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Answers & Comments
Ответ:
( 4,5 : 7 )
Объяснение:
4х - y = 11 | * (-2) -8x + 2y = -22 -2x = -9
6x - 2y = 13 6x - 2y = 13 6x - 2y = 13
x= 4,5
y=7
-2x = -9 6x - 2y = 13
x= -9 / (-2) 6 * 4,5 - 2y = 13
x= 4,5 27 - 2y = 13
-2y = 13 - 27
-2y = - 14
y = -14 / (-2)
y = 7