Question

Determina el valor de x en cada ejercicio y realiza la comprobación:

x + 9 = -10
7 x + 3 = 9x -7
9x = 3x + 18
7x + 42 = 6x + 47
42 = 6x - 18
8x + 1 = 15x - 6
4 (x - 7) = -4
x + 6 + 5x - 2 = 4(x - 2)
6x - 8 = 4 (-2x +5)
3x - 25 + 4x = 31

*Reporto*
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Answer 1

Respuesta:

x + 9 = -10

7 x + 3 = 9x -7

9x = 3x + 18

7x + 42 = 6x + 47

42 = 6x - 18

8x + 1 = 15x - 6

4 (x - 7) = -4

x + 6 + 5x - 2 = 4(x - 2)

6x - 8 = 4 (-2x +5)

3x - 25 + 4x = 31

Explicación paso a paso=-10+9-=1 gaaaaaaaaaaaaa reporta tu piiiiiiiiiiiiiiiiiiiiiiiiiii

Answer 2

Verified answer

Respuesta:

x + 9 = -10

x + 9 -9 = -10 -9

x = -19

7 x + 3 = 9x -7

7x + 3 -3 = 9x -7 -3

7x = 9x -10

7x -9x = 9x -10 -9x

-2x = -10

-2x/-2 = -10/-2

x = 5

9x = 3x + 18

9x -3x = 3x + 18 -3x

6x = 18

6x/6 = 18/6

x = 3

7x + 42 = 6x + 47

7x + 42 -42 = 6x + 47 -42

7x = 6x + 5

7x -6x = 6x + 5 -6x

x = 5

42 = 6x - 18

42 +18 = 6x - 18 +18

60 = 6x

60/6 = 6x/6

10 = x

x = 10

8x + 1 = 15x - 6

8x + 1 -1 = 15x - 6 -1

8x = 15x - 7

8x -15x = 15x - 7 -15x

-7x = -7

-7x/7 = -7/7

x = 1

4 (x - 7) = -4

4 (x) - (7*4) = -4

4x - 28 = -4

4x - 28 +28 = -4 +28

4x = 24

4x/4 = 24/4

x = 6

x + 6 + 5x - 2 = 4(x - 2)

x + 6 + 5x - 2 = 4(x - 2)

x + 4 + 5x = 4(x - 2)

6x + 4 = 4(x - 2)

6x + 4 = 4(x) - (2*4)

6x + 4 = 4x - 8

6x + 4 -4 = 4x - 8 -4

6x = 4x - 12

6x -4x = 4x - 12 -4x

2x = -12

2x/2 = -12/2

x = -6

6x - 8 = 4 (-2x +5)

6x - 8 = 4 * (-2x) - (4 * 5)

6x - 8 = -8x - (-20)

6x - 8 = -8x +20

6x - 8 +8 = -8x +20 +8

6x = -8x + 28

6x +8x = -8x + 28 +8x

14x = 28

14x/14 = 28/14

x = 2

3x - 25 + 4x = 31

3x - 25 + 4x = 31

7x - 25 = 31

7x -25 +25 = 31 +25

7x = 56

7x/7 = 56/7

x = 8