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 = 1/14х : 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 = 1/14х : 1/16;1/*4х * 35 = 48 * 1/16 ;5/2*х = 3;х = 3 : 5/2;х = 1,2.