Question

A- 2.x+5=19
B- x+4-2=5.4
C- 3.x-12=7.3
D- 2.(x+1)=36+4
E- 3.(x-1)=2.x+5
F- 24÷3+2.x-64=3+13​

Answer 1

Respuesta:

A) x = 7

B) x = 18

C) x = 11

D) x = 19

E) x = 8

F) x = 36

Explicación paso a paso:

Ejercicio A

2.x + 5 = 19

2x + 5 = 19

2x = 19 - 5

2x = 14

x = 14/2

x = 7

Ejercicio B

x + 4 - 2 = 5.4

x + 4 - 2 = 20

x + 2 = 20

x = 20 - 2

x = 18

Ejercicio C

3.x - 12 = 7.3

3x - 12 = 21

3x = 21 + 12

3x = 33

x = 33/3

x = 11

Ejercicio D

2.(x + 1) = 36 + 4

2x + 2 = 40

2x = 40 - 2

2x = 38

x = 38/2

x = 19

Ejercicio E

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

3x - 3 = 2x + 5

3x - 2x = 5 + 3

x = 8

Ejercicio F

24 ÷ 3 + 2.x - 64 = 3 + 13

8 + 2x - 64= 16

2x - 56 = 16

2x = 16 + 56

2x = 72

x = 72/2

x = 36

Answer 2

Respuesta:

A x = 7

B x = 18

C x = 11

D x = 19

E x = 8

F x = 36

Explicación paso a paso:

A) 2x+5=19

2x=19-5

2x=14

x=14/2

x=7