Question

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Answer 1

Ответ:

а) - 3/5х=15

х= - 25

б)9х+72.9=0

9х=-72.9

х=-8.1

в)2(0.6х+1.85)-0.7=1.3х

1.2х+3.9-0.7=1.3х

1.2х-1.3х=-3.9+0.7

-0.1х=-3.2

х=32