Question

Помогите решить уравнение

Answer 1

1

1/3 x = 4

x = 4*3

x=12

2

3x + 2 = 0

3x = -2

x = -2/3

3

25 - 3x = 2x + 29

-2x - 3x = 29 - 25

-5x = 4

x = -4/5

Answer 2

1.

$\frac{1}{3} x = 4 \\ 3 \times \frac{1}{3} x = 3 \times 4 \\ x = 12$

2.

$3x+ 2 = 0 \\ 3x = - 2 \\ x = - \frac{2}{3} = \\ x = - 0.6$

3.

$25 - 3x = 2x + 29 \\ - 3x - 2x = 29 - 25 \\ - 5 = 4 \\ \times = - \frac{4}{5} \\ x = - 0.8$