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FillJKeyYT
@FillJKeyYT
July 2022
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Решите уравнения:
1) (18х-19)-(4-7х)=-73
2) -3(4-5у)+2(3-6у)=-3,9
3) 2,4(7-9у)=-48
Плиииз :D
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Answers & Comments
Валерия0602
1)18х-19-4+7х=-73
18х+7х=-73+19+4
25х=-50/25
х=-2
2)-12+15у+6-12у=-3,9
15у-12у=-3,9+12-6
3у=2,1/3
у=0,7
3)16,8-21,6у=-48
21,6у=-48-16,8
21,6у=-64,8/21.6
y=-3
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FillJKeyYT
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Answers & Comments
18х+7х=-73+19+4
25х=-50/25
х=-2
2)-12+15у+6-12у=-3,9
15у-12у=-3,9+12-6
3у=2,1/3
у=0,7
3)16,8-21,6у=-48
21,6у=-48-16,8
21,6у=-64,8/21.6
y=-3