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sevosa
@sevosa
August 2022
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4x+3y=-1
2x-y=11
решить систему методом подстановки
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Kruk2000
4x-3y=11
2x-y=13
4x-3y=11
-y=13
- 2х
4x-3y=11
y= -13
+ 2х
4x-3(-13+2х)=11
4х + 39 -6х = 11
4х - 6х =11 - 39
-2х = -28
х = 14
у = -13 + 2* 14 = 15
Ответ: (14; 15)
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Answers & Comments
2x-y=13
4x-3y=11
-y=13 - 2х
4x-3y=11
y= -13 + 2х
4x-3(-13+2х)=11
4х + 39 -6х = 11
4х - 6х =11 - 39
-2х = -28
х = 14
у = -13 + 2* 14 = 15
Ответ: (14; 15)