387:х=513:57 6*7+а=44 29434-6992:23+675*28=

Question

387:х=513:57 6*7+а=44 29434-6992:23+675*28=

Answer 1

387:х=513:57
387:х=9
Х=387:9
х=43

6*7+а=44
42+а=44
а=44-42
а=2

29434-6992:23+675*28=29434-304+18900=29130+18900=48030