Question

решите уравнение 2,3в+6в-3,8в+в=11

Answer 1

$2.3b+6b-3.8b+b=11\\5.5b=11\\b=11:5.5\\b=2$

Answer 2

2,3b+6b-3,8b+b=11
5,5b=11
b=11:5,5
b=2
Ответ:2