X-80=7200:10 x:1=456

Question

X-80=7200:10 x:1=456

Answer 1

Ответ:

x-80=7200:10

x-80=720

x=720+80

x=800

Ответ: 800-80=7200:10

x:1=456

x=456:1

x=456

Ответ:456:1=456