1) 3y-y=1/2 2) x+4x=4 1/6 3) 5z-3z=3 1/9 4) x+x+x=1 5)

1) 3y - y = 1/2;

2у = 1/2;

у = 1/2 : 2;

у = 1/2 * 1/2;

у = 1/4.

Ответ: у = 1/4.

2) x + 4x = 4 1/6;

5х = 25/6;

х = 25/6 : 5;

х = 25/6 * 1/5;

х = 5/6.

Ответ: х = 5/6.

3) 5z - 3z = 3 1/9;

2z = 28/9;

z = 28/9 : 2;

z = 28/9 * 1/2;

z = 14/9 = 1 5/9.

Ответ: z = 14/9 = 1 5/9.

4) x + x + x = 1;

3х = 1;

х = 1 : 3;

х = 1/3.

Ответ: х = 1/3.

5) x + 2x + 6x = 3 3/5;

3х + 6х = 18/5;

9х = 18/5;

х = 18/5 : 9;

х = 18/5 * 1/9;

х = 2/5.

Ответ: х = 2/5.

6) 4z - z + 2z = 1/2;

3z + 2z = 1/2;

5z = 1/2;

z = 1/2 : 5;

z = 1/2 * 1/5;

z = 1/10.

Ответ: z = 1/10.