Номер 993

x : 12 = 45 – 37;
x : 12 = 8;
x = 8 · 12;
x = 96;
96 : 12 = 8;
45 – 37 = 8;
8 = 8.

67 – x = 84 : 3;
67 – x = 28;
x = 67 – 28;
x = 39;
67 – 39 = 28;
84 : 3 = 28;
28 = 28.

x – 56 = 34 : 2;
x – 56 = 17;
x = 17 + 56;
x = 73;
73 – 56 = 17;
34 : 2 = 17;
17 = 17.

810 : x = 15 · 6;
810 : x = 90;
x = 810 : 90;
x = 9;
810 : 9 = 90;
15 · 6 = 90;
90 = 90.

x + 24 = 43 · 2;
x + 24 = 86;
x = 86 – 24;
x = 62;
62 + 24 = 86;
43 · 2 = 86;
86 = 86.