Question

реши уравнение(x-70)*5+80=280

Answer 1

(х-70)*5+80=280

5х-350=280-80

5х-350=200

5х=200+350

5х=550

х=550 : 5

х=110

Answer 2

(X-70)x5+80=280 

5X-350+80=280

5X=550

X=110