Question

решить уравнение
300-78:x=287

Answer 1

300-78:x=287
300х-78=287х
300х-287х=78
13х=78
х=78:13
х=6

Answer 2

300-78:x=287
78:х=300-287
78:х=13
х=78:13
х=6

Answer 3

300-78:х=287

Answer 4

300-287=222