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Wigled
@Wigled
February 2022
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Пожалуйста решите помогите 2 примера
1)
2)
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ndusha
Verified answer
1)
2х+7у-44=0
2х-3у=-36
2х=44-7у
2х=-36+3у
х=22-3,5у
х=-18+1,5у
22-3,5у=-18+1,5у
-3,5у-1,5у=-18-22
-4у=-40
4у=40
у=40/4
у=10
х=
22-3,5у=22-3,5*10=22-35=-13
Ответ:х=-13,у=10
2)
х-8у-17=0
3х+4у-23=0
х=17+8у
3(17+8у)+4у-23=0
51+24у+4у-23=0
28у+28=0
28у=-28
у=-28/28
у=-1
х=
17+8у=17+8(-1)=17-8=9
Ответ:х=9,у=-1
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Answers & Comments
Verified answer
1)2х+7у-44=0
2х-3у=-36
2х=44-7у
2х=-36+3у
х=22-3,5у
х=-18+1,5у
22-3,5у=-18+1,5у
-3,5у-1,5у=-18-22
-4у=-40
4у=40
у=40/4
у=10
х=22-3,5у=22-3,5*10=22-35=-13
Ответ:х=-13,у=10
2)
х-8у-17=0
3х+4у-23=0
х=17+8у
3(17+8у)+4у-23=0
51+24у+4у-23=0
28у+28=0
28у=-28
у=-28/28
у=-1
х=17+8у=17+8(-1)=17-8=9
Ответ:х=9,у=-1