Решите уравнение: 1) 1 1/3x+0,2=1 2) 3/25y-1,2=0,6 3) 1,32x+4=10 3/5 4) 7/12 х-0,5=1,25 5) 5/6x-4,15=2,1 6) 2,7+2/9y=4,

1) 1 1/3 * x + 0,2 = 1;

(1 * 3 + 1) / 3 * x = 1 - 0,2;

(3 + 1) / 3 * x = 0,8;

(4 * x) / 3 = 0,8;

4 * x = 3 * 0,8;

4 * x = 2,4;

x = 2,4/4;

x = 0,6.

2) 3/25 * y - 1,2 = 0,6;

(3 * y) / 25 = 0,6 + 1,2;

(3 * y) / 25 = 1,8;

3 * y = 25 * 1,8;

3 * y = 45;

y = 45/3;

y = 15.

3) 1,32 * x + 4 = 10 3/5;

1,32 * x + 4 = (10 * 5 + 3) / 5;

1,32 * x + 4 = (50 + 3) / 5;

1,32 * x = 53/5 - 4;

1,32 * x = 53/5 - 20/5;

1,32 * x = (53 - 20) / 5;

1,32 * x = 33/5;

1,32 * x = 6,6;

x = 6,6/1,32;

x = 5.

4) 7/12 * x - 0,5 = 1,25;

(7 * x) / 12 = 1,25 + 0,5;

(7 * x) / 12 = 1,75;

7 * x = 12 * 1,75;

7 * x = 21;

x = 21/7;

x = 3.

5) 5/6 * x - 4,15 = 2,1;

(5 * x) / 6 = 2,1 + 4,15;

(5 * x) / 6 = 6,25;

5 * x = 6 * 6,25;

5 * x = 37,5;

x = 37,5/5;

x = 7,5.

6) 2,7 + 2/9 * y = 4,3;

(2 * y) / 9 = 4,3 - 2,7;

(2 * y) / 9 = 1,6;

2 * y = 9 * 1,6;

2 * y = 14,4;

y = 14,4/2;

y = 7,2.