Question

Resolver las siguientes ecuaciones: A) 4x − 5 = 23 B) x ∶ 2 + 7 = 18 C) 5x + 10 = 25 D) 2x + 3 = 9 E) 3x − 5 = 10

Answer 1

Respuesta:

A) 7

B)

C) 3

D) 3

E) 5

Explicación paso a paso:

A)

4x -5 = 23

4x = 23 +5

4x = 28

x = 28 ÷ 4

x = 7

4 ( x ) - 5 = 23

4 ( 7 ) - 5 = 23

28 - 5 = 23

23 = 23

B) x : 2 + 7 = 18 (que significan los dos puntos " : ")

C)

5x + 10 = 25

5x = 25 - 10

5x = 15

x = 15 ÷ 5

x = 3

5 ( x ) + 10 = 25

5 ( 3 ) + 10 = 25

15 + 10 = 25

25 = 25

D)

2x + 3 = 9

2x = 9 - 3

2x = 6

x = 6 ÷ 2

x = 3

2 ( x ) + 3 = 9

2 ( 3 ) + 3 = 9

6 + 3 = 9

9=9

E)

3x - 5 = 10

3x = 10 + 5

3x = 15

x = 15 ÷ 3

x = 5

3 ( x ) -5 = 10

3 ( 5 ) -5 = 10

15 - 5 = 10

10 = 10

Espero haber podido ayudarte.