Решить уравнения (подробно)

3 * (0.2-x) - 1.2x=0.8x+10.6

2x+4.4-3 * (3.2-0.4) = - 2.4x-10

3x-4 * (1.5x-2) = x

3 * (0.2-x) - 1.2x=0.8x+10.6

0.6-3x-1.2x=0.8x+10.6

-3x-1.2x-0.8x=10.6-0.6

-5x=10

x=19/-5

x=-2

Проверка: 3 (0.2 - (-2)) - 1.2 * (-2) = 0.8 * (-2) + 10.6

3*2.2+2.4=-1.6+10.6

6.6+2.4=9

9=9

2x+4.4-3 * (3.2-0.4) = - 2.4x-10

2x+2.4x=-10-4.4+8.4

4.4x=-6

x=-6/4.4

x≈ - 1.36

Проверка: 2 * (-1.36) + 4.4-3 * (3.2-0.4) = - 2.4 * (-1.36) - 10

-6.73=-6.73

3x-4 * (1.5x-2) = x

3x-6x+8=x

3x-6x-x=-8

-4x=-8

x=-8/-4

x=2

Проверка: 3*2-4 (1.5*2-2) = 2

6-12+8=2

-6+8=2

2=2