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lnikulina125
@lnikulina125
July 2022
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решите уравнение
а)8y=-62,4+5y=
б)7,5-x=x+1,5=
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dprssun
1) 8у = - 62,4 + 5у
8у - 5у = - 62,4
3у = - 62,4
у = - 62,4 : 3
у = - 20,8
б) 7,5 - х = х + 1,5
х + х = 7,5 - 1,5
2х = 9
х = 9 : 2
х = 4,5
Ответ: а) - 20,8; б) 4,5.
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Answers & Comments
8у - 5у = - 62,4
3у = - 62,4
у = - 62,4 : 3
у = - 20,8
б) 7,5 - х = х + 1,5
х + х = 7,5 - 1,5
2х = 9
х = 9 : 2
х = 4,5
Ответ: а) - 20,8; б) 4,5.