Question

Реши уравнения (6209+в)-2187=5915

Answer 1

(6209+в)-2187=5915

6209+в=5915+2187

6209+в=8102

в=8102-6209

в=1893

Answer 2

6209+в=5915+2187
6209+в=8102
в=8102-6209
в=1893
6209+1893=8102
8102=8102
(6209+1893)-2187=5915