Question

ВСЕ задания,даю аж 30 баллов
Пожалуйста помогите :З​

Answer 1

1)

2(8x-3) - 3(2x+1) = 1 + 3(4x-2)

16x - 6 - 6x + 3 = 1 + 12x - 6

16x - 12x - 6x = 1 - 6 + 6 - 3

-2x = -2

x = 1

2)

0.1(20x-3) - 0.2(1-5x) = 0.7 + x

2x - 0.3 - 0.2 + x = 0.7 + x

2x + x - x = 0.7 + 0.3 + 0.2

2x = 1.2

x = 0.6

3)

(3x-1)/5 - (x+2)/3 = (3-2x)/15

3(3x-1) - 5(x+2) = 3 - 2x

9x - 3 - 5x - 12 = 3 - 2x

9x - 5x + 2x = 3 + 3 + 12

6x = 18

x = 3

4)

0.3(4x-1) = (2-5x)/6 - (1-3x)/3

1.8(4x-1) = 2 - 5x - 2(1-3x)

7.2x - 1.8 = 2 - 5x - 2 + 6x

7.2x + 5x - 6x = 2 - 2 + 1.8

6.2x = 1.8

x = 0.2

5)

(1-2x)/3 + 3 = (x+2)/2 + (3-x)/6

2(1-2x) + 18 = 3(x+2) + 3 - x

2 - 4x + 18 = 3x + 6 + 3 - x

-4x - 3x = 6 + 3 - 2 - 18

- 7x = -14

x = 2