6 (х-3) + 2 (х+2) = 1.5 (х-1) - 4 (х-2) = 103 (х-9) + 5 (х-4) = 17 (х-9) - (3 х+1) = 9

Решим уравнения:

1) 6 * (х - 3) + 2 * (х + 2) = 1;

6 * x - 18 + 2 * x + 4 = 1;

8 * x - 14 = 1;

8 * x = 1 + 14;

8 * x = 15;

x = 15/8;

2) 5 * (х - 1) - 4 * (х - 2) = 10;

5 * x - 5 * 1 - 4 * x + 4 * 2 = 10;

5 * x - 5 - 4 * x + 8 = 10;

5 * x - 4 * x + 3 = 10;

x + 3 = 10;

x = 10 - 3;

x = 7;

3) 3 * (х - 9) + 5 * (х - 4) = 17;

3 * x - 3 * 9 + 5 * x - 5 * 4 = 17;

3 * x - 27 + 5 * x - 20 = 17;

8 * x - 47 = 17;

8 * x = 17 + 47;

8 * x = 64;

x = 64/8;

x = 8;

4) (х - 9) - (3 * х + 1) = 9;

x - 9 - 3 * x - 1 = 9;

-2 * x - 10 = 9;

-2 * x = 9 + 10;

-2 * x = 19;

x = - 19/2;

x = - 9.5.