Question

1. 2x+6 = 20
2. 4x –9 = 2x + 3
3. 3(x – 5) = 2(x + 2)
4x + 9 = 2
5

5. x + 3 = X -1
2 3​

Answer 1

Respuesta:

2x+6 = 20 : x:7

4x –9 = 2x + 3 : x:6

3(x – 5) = 2(x + 2) : x:19

4x + 9 = 2 : x:-1.75

x + 3 = X -1 : X:4

Answer 2

Respuesta:

1. x = 7

2. x = 6

3. x = 19

4. x = 4

5. sin solución

Explicación paso a paso:

1. 2x + 6 = 20

  2x = 20 - 6

  2x = 14

  x = 14÷2

  x = 7

2. 4x - 9 = 2x + 3

   4x - 2x = 3 + 9

   2x = 12

   x = 12÷2

   x = 6

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

   3x - 15 = 2x + 4

   3x - 2x = 4 - 15

   x = 19

4. 4x + 9 = 25

   4x = 25 - 9

   4x = 16

   x = 16÷4

   x = 4

5. sin solución