реши уравнение(x-70)*5+80=280
(х-70)*5+80=280
5х-350=280-80
5х-350=200
5х=200+350
5х=550
х=550 : 5
х=110
(X-70)x5+80=280
5X-350+80=280
5X=550
X=110
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Verified answer
(х-70)*5+80=280
5х-350=280-80
5х-350=200
5х=200+350
5х=550
х=550 : 5
х=110
Verified answer
(X-70)x5+80=280
5X-350+80=280
5X=550
X=110