Question

68 : Х = 8 ( ост.4 )
73 : Х= 9(ост. 1)
Помогите !!!!

Answer 1

68÷х=8(ост.4);
8х+4=68;
8х=68-4;
8х=64;
х=64÷8;
х=4.

73÷х=9(ост.1)
9х+1=73;
9х=73-1;
9х=72;
х=72÷9;
х=8.