Решите уравнение. 1) 6/11 : 3/22 = 12/17 : х, 2) 21/х+3 = 7/4, 3) 12/13 = 7,4-х/2,6, 4) 48 : 35 = 1/14 х: 1/16

1) 6/11 * 3/22 = 12/17 : х;

6/11*х = 3/22 * 12/17;

х = 3/22 * 12/17 * 11/6;

х = 3/17.

2) 21/х + 3 = 7/4;

7 (х + 3) = 21 * 4;

х + 3 = 21 * 4 : 7;

х + 3 = 12;

х = 12 - 3;

х = 9.

3) 12/13 = (7,4 - х) / 2,6;

7,4 - х = 12 * 2,6 : 13;

7,4 - х = 2,4;

х = 5.

4) 48 : 35 = 1/14 х: 1/16;

1/*4 х * 35 = 48 * 1/16;

5/2*х = 3;

х = 3 : 5/2;

х = 1,2.