Решите уравнение:

1) 0.3 (x-2) - 0.2 (x+4) = 0.6

2) 0.8x+1.2 (x+1.8) = 35.96

1. 0.3 * (x-2) = 0.3*x-0.6

0.3 * (x-2) = 0.3*x-0.3*2

1.1. 0.3*2=0.6

X0.3

_ _2_ _

0.6

2. 0.2 * (x+4) = 0.2*x+0.8

0.2 * (x+4) = 0.2*x+0.2*4

2.1. 0.2*4=0.8

X0.2

_ _4_ _

0.8

3. 0.3*x-0.6 - (0.2*x+0.8) = 0.3*x-0.6-0.2*x-0.8

4. 0.3*x-0.2*x=0.1*x

5. - 0.6-0.8=-1.4

+0.6

_0_._8_

1.4

6. - 1.4-0.6=-2

+1.4

_0_._6_

1. 0.3*x-0.6-0.2 * (x+4) - 0.6=0

1.1. 0.3 * (x-2) = 0.3*x-0.6

0.3 * (x-2) = 0.3*x-0.3*2

1.1.1. 0.3*2=0.6

X0.3

_ _2_ _

0.6

2. 0.3*x-0.6 - (0.2*x+0.8) - 0.6=0

2.1. 0.2 * (x+4) = 0.2*x+0.8

0.2 * (x+4) = 0.2*x+0.2*4

2.1.1. 0.2*4=0.8

X0.2

_ _4_ _

0.8

3. 0.3*x-0.6-0.2*x-0.8-0.6=0

3.1. 0.3*x-0.6 - (0.2*x+0.8) = 0.3*x-0.6-0.2*x-0.8

4. 0.1*x-0.6-0.8-0.6=0

4.1. 0.3*x-0.2*x=0.1*x

5. 0.1*x-1.4-0.6=0

5.1. - 0.6-0.8=-1.4

+0.6

_0_._8_

1.4

6. - 1.4-0.6=-2

Ответ: 0.1*x-2=0

0,3 х-0,6=0,6+0,2 х+0,8

0,3 х-0,2 х=1,4+0,6

Дальше напишешь

0.8x+1.2x+2.16=35.96

2x=35.96-2.16

2x=33.8

x=16.9