Question

Решите пожайлуста 2) и 3)

Answer 1

Х-2 = 2 / (4-3/2)
х-2 = 2/( 2/ 5/2)
х-2 = 2 * 2/5 
х-2 = 4/5
х = 4/5 + 2
х=4/5 + 10/5
х=14/5
х=2 4/5


х-3  =3 (2+4/3)
х-3 = 3 / (12/6+8/6)
х-3 = 3/ (20/6)
х-3 = 3* 6/20
х-3 = 18/20
х=18/20 + 3
х=18/20+60/20
х=78/20
х=3 18/20 = 3 9/10