Question

Necesito de su ayuda!!! por favor

Resuelve y comprueba las siguientes ecuaciones

3x + 4 = 22

2x + 3 = 13


4x + 3 = 15


2x - 3 = - 11


1.2x + 3.7 = 8.5


2.5x + 1 = 3.75


45x- 12 = 4


15x- 2 = 6


23x+14=56



2(x +1) =14


3(x +5)= 12

5(x -8)= -30


8(x -6) = 60 +4


5( x -6) =2 -17


2(3x -2) = 11


4(1.7 -x) = 4.8


6( 2.5 +x) = 21


9(x -13) = 9


4(x +12) = -2.8​

Answer 1

Respuesta:

Explicación paso a paso:

3x + 4 = 22

3x = 22 - 4

3x = 18

x = 18/3

x = 6

Comprobación:

3*6 + 4 = 22

18 + 4 = 22

2x + 3 = 13

2x = 13-3

2x = 10

x = 10/2

x = 5

Comprobación:

2*5 + 3 = 13

10+3 = 13

 

4x + 3 = 15

4x = 15-3

4x = 12

x = 12/4

x = 3

Comprobación:

4*3 + 3 = 15

12 + 3 = 15

2x - 3 = - 11

2x = -11 + 3

2x = -8

x = -8/2

x = -4

Comprobación:

2*-4 -3 =-11

-8 - 3 = -11

1.2x + 3.7 = 8.5

1.2x = 8.5 - 3.7

1.2x = 4.8

x = 4.8/1.2

x = 4

Comprobación:

1.2*4 + 3.7 = 8.5

4.8 + 3.7 = 8.5

2.5x + 1 = 3.75

2.5 = 3.75 - 1

2.5x = 2.75

x = 2.75 / 2.5

x = 1.1

45x- 12 = 4

45x = 4+12

45x = 16

x = 16/45

Comprobación:

45*16/45 - 12 = 4

16-12 = 4

15x- 2 = 6

15x = 6+2

15x = 8

x = 8/15

Comprobación:

15*8/15 - 2 = 6

8 - 2 = 6

23x+14=56

23x = 56 - 14

23x = 42

x = 42/23

Comprobación:

23*42/23 + 14 = 56

42 + 14 = 56

2(x +1) =14

2*x + 2*1 = 14

2x + 2 = 14

2x = 14-2

2x = 12

x = 12/2

x = 6

Comprobación:

2(6+1) = 14

2*7 = 14

3(x +5)= 12

3*x + 3*5 = 12

3x + 15 = 12

3x = 12-15

3x = -3

x = 3/-3

x = -1

Comprobación:

3(-1+5) = 12

3*4 = 12

5(x -8)= -30

5*x + 5*-8 = -30

5x - 40 = -30

5x = -30 + 40

5x = 10

x = 10/5

x = 2

Comprobación:

5(2-8) = -30

5*-6 = -30

8(x -6) = 60 +4

8*x + 8*-6 = 64

8x - 48 = 64

8x = 64 + 48

8x = 112

x = 112/8

x = 14

Comprobación:

8(14-6) = 64

8*8 = 64

5( x -6) =2 -17

5*x + 5*-6 = -15

5x - 30 = -15

5x = -15 + 30

5x = 15

x = 15/5

x = 3

Comprobación:

5(3-6) = -15

5*-3 = -15

2(3x -2) = 11

2*3x + 2*-2 = 11

6x - 4 = 11

6x = 11+4

6x = 15

x = 15/6

x = 2.5

Comprobación:

2(3*2.5 - 2) = 11

2(7.5-2) = 11

2*5.5 = 11

4(1.7 -x) = 4.8

4*1.7 + 4*-x = 4.8

6.8 - 4x = 4.8

-4x = 4.8 - 6.8

-4x = -2

x = -2/-4

x = 0.5

Comprobación:

4(1.7-0.5) = 4.8

4*1.2 = 4.8

6( 2.5 +x) = 21

6*2.5 + 6*x  = 21

15 + 6x = 21

6x = 21 -15

6x = 6

x = 6/6

x = 1

Comprobación:

6(2.5+1) = 21

6*3.5 = 21

9(x -13) = 9

9*x + 9*-13 = 9

9x - 117 = 9

9x = 9 + 117

9x = 126

x = 126/9

x = 14

Comprobación:

9(14-13) = 9

9*1 = 9

4(x +12) = -2.8​

4*x + 4*12 = -2.8

4x + 48 = -2.8

4x = -2.8 - 48

4x = 50.8

x = -50.8/4

x = -12.7

Comprobación:

4(-12.7+12) = -2.8

4*-0.7 = -2.8