Question

Resuelve y verifica las siguientes ecuaciones:
▪ 3x + 4 = 22
▪ x : 3 + 1 = 16
▪ (2x + 4) : 2 = 5
▪ 3x2 + 2 = 14
▪ 5(x + 2) = 15
▪ x + 8 =15
▪ 6x – 5 = 3x + 4
▪ 6x + 2 = 18 + 2x
▪ 5x + 2 + x = 2x + 6 + 2x
▪ 3(x + 1) = 2x + 5
▪ 3 (2x + 3) = 5x + 12
▪ 3 (3x + 2) = 2 (8 + 2x)

Answer 1

Respuesta:

3x + 4 = 22

3x = 22 - 4

3x = 18

x = 18/3

x = 6

x : 3 + 1 = 16

x : 3 = 16 - 1

x : 3 = 15

x = 15 * 3

x = 45

(2x + 4) : 2 = 5

2(x+2)/2 = 5

x + 2 = 5

x = 5 - 2

x = 3

3x2 + 2 = 14

3x2 = 14 - 2

3x2 = 12

x2 = 12/3

x2 = 4

x = 2

5(x + 2) = 15

x + 2 = 15/5

x + 2 = 3

x = 3 - 2

x = 1

x + 8 = 15

x = 15 - 8

x = 7

6x – 5 = 3x + 4

6x - 3x = 4 + 5

3x = 9

x = 9/3

x = 3

6x + 2 = 18 + 2x

6x - 2x = 18 - 2

4x = 16

x = 16/4

x = 4

5x + 2 + x = 2x + 6 + 2x

5x + x - 2x - 2x = 6 - 2

6x - 2x - 2x = 4

4x - 2x = 4

2x = 4

x = 4/2

x = 2

3(x + 1) = 2x + 5

3x + 3 = 2x + 5

3x - 2x = 5 - 3

x = 2

3 (2x + 3) = 5x + 12

6x + 9 = 5x + 12

6x - 5x = 12 - 9

x = 3

3 (3x + 2) = 2 (8 + 2x)

9x + 6 = 16 + 4

9x - 4x = 16 - 6

5x = 10

x = 10/5

x = 2