решите уровнение:) 4х=0,22+0,26; 5х=8,17+2,48; 6х=3,9*8; х+2х=21,42; 2х+5х=42,7; 12х-3х=41,4

Найдем корни.

1) 4 * х = 0,22 + 0,26; 

4 * x = 0.28  + 0.2;

4 * x = 0.48;

x = 0.48/4;

x = 0.12.

2) 5 * х = 8,17 + 2,48; 

5 * x = 10 + 0.5 + 0.15;

5 * x = 10.65;

x = 10.65/5;

x = 2.13. 

3) 6 * х = 3,9 * 8; 

x = 3.9 * 8/6;

x = 3.9 * 4/3;

x = 1.3 * 4;

x = 5.2.

4) х + 2 * х = 21,42; 

3 * x = 21.42;

x = 21.42/3;

x = 7.14.

5) 2 * х + 5  * х = 42,7; 

7 * x = 42.7;

x = 42.7/7;

x = 6.1.

6) 12 * х - 3 * х = 41,4; 

9 * x = 41.4; 

x = 41.4/9; 

x = 4.6.