РЕШИ УРАВНЕНИЕ : 1) 8(х -1,4) =0,56; 2) (4,6-х) *19 =4,18; 3) (51,32+х) *0,12 =72; 4) 17,28/(56-х) =36

Решение.

1. x - 1,4 = 0,56/8;

x - 1,4 = 0,07;

x = 1,4 + 0,07;

x = 1,47.

2. 4,6 - x = 4,18/19;

4,6 - x = 0,22;

- x = - 4,6 + 0,22;

- x = - 4,38;

x = 4,38.

3. 51,32 + x = 72/0,12;

51,32 + x = 600;

x = 600 - 51,32;

x = 548,68.

4. 36*(56 - x) = 17,28;

56 - x = 17,28/36;

56 - x = 0,48;

- x = - 56 + 0,48;

- x =  -55,52;

x = 55,52.

Ответ: 1. x = 1,47; 2. x = 4,38; 3. x = 548,68; 4. x = 55,52.