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Автор - MeowMeow132

Не понимаю как решать уравнения

Ответ

Автор - sveta87634
-2у-1,2=-0,8у
-2у+0,8=1,2
-1,2у=1,2
У=-1

0,6у+4=0,2у
0,6у-0,2у=-4
0,4у=-4
У=-12

4-0,5х=0,3х
-0,5х-0,3х=-4
-0,8х=-4
Х=-4:-0,8
Х=5

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