X•40+3800=6400 пожалйлусто

Question

X•40+3800=6400 пожалйлусто

Answer 1

Х*40=6400-3800
Х*40=2600
Х=2600:40
Х=65

Answer 2

Х*40+3800=6400
40х=6400-3800
40х=2600
х=2600:40
х=65