Решите уравнение: 1) 3,4x-4=4,8-x; 2) 2x+7=x+5,5; 3) 5-3x=2x-8; 4) 9,5x+2=5,7x-5,6; 5) 1,5x+8=3,1x+16; 6) 2,9x+7,4=x+1,7

Вычислим корни:

1) 3,4 * x - 4 = 4,8 - x;

Приведем к виду a * x = b.

3,4 * x + x = 4.8 + 4;

4.4 * x = 8.8;

x = 8.8/4.4;

x = 2.

2) 2 * x + 7 = x + 5,5;

2 * x - x = 5.5 - 7;

x = - 1.5.

3) 5 - 3 * x = 2 * x - 8;

-3 * x - 2 * x = - 8 - 5;

5 * x = 13;

x = 13/5;

x = 2.6.

4) 9,5 * x + 2 = 5,7 * x - 5,6;

9.5 * x - 5.7 * x = - 5.6 - 2;

3.8 * x = - 7.6;

x = - 76/38;

x = - 2.

5) 1,5 * x + 8 = 3,1 * x + 16;

1.5 * x - 3.1 * x = 16 - 8;

-1.6 * x = 8;

x = - 8/1.6;

x = - 5.

6) 2,9 * x + 7,4 = x + 1,7;

2.9 * x - x = 1.7 - 7.4;

1.9 * x = - 5.7;

x = - 5.7/1.9;

x = - 3.