Помогите пж очень нужно. Created by mashenka204. algebra-ru

Помогите пж очень нужно...

mashenka204 @mashenka204

April 2021 1 21 Report

Помогите пж очень нужно

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BlackVortex

Verified answer

1.
y=20+x
2x-15y=-1

2x-15(20+x)=-1
x=-23
2(-23)-15y=1
y=-3
(x,y)=(-23,-3)

-3-(-23)=20
2*(-23)-15*(-3)=-1

20=20
-1=-1

2.
x=4y+25
3x-2y=30

3(4y+25)-2y=30
y=-9/2
3x-2*(-9/2)=30
x=7
(x,y)=(7,-9/2)

25-7=4*(-9/2)
3*7-2*(-9/2)=30

18=18
30=30

2 votes Thanks 1

mashenka204 Спасибоо огромное

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mashenka204 August 2022 | 0 Ответы

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mashenka204 July 2022 | 0 Ответы

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Answers & Comments

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