Question

......:c resolución por faa

Answer 1

Respuesta:

Mucha suerte, espero haberte ayudado.

Explicación paso a paso:

1.

$8m - 5 = 3m - 20 \\ 8m - 3m = - 20 + 5 \\ 5m = - 15 \\ m = - 3$

Clave c)

2.

$7x - 3 = 21 - 11 \\ 7x = 21 - 8 \\ 7x = 13 \\ x = \frac{13}{7}$

Clave a)

3.

$3x - 5 = 6x - 14 \\ 14 - 5 = 6x - 3x \\ 9 = 3x \\ 3 = x$

Clave b)

4.

$15 - 4a = 31 - 8a \\ 8a - 4a = 31 - 15 \\ 4a = 16 \\ a = 4$

Clave d)

5.

$32 - 14 = 6x - 18 \\ 32 + 4 = 6x \\ 36 = 6x \\ 6 = x$

Clave e)

Answer 2

Respuesta:

Explicación paso a paso:

1.

8m - 5 = 3m - 20

8m = 3m - 20 + 5

8m = 3m - 15

8m - 3m = -15

5m = -15

m = -15/5

m = -3

2.

7x - 3 = 21 - 11

7x - 3 = 10

7x = 10 + 3

7x = 13

x = 13/7

3.

3x - 5 = 6x - 14

3x - 5 + 14 = 6x

3x + 9 = 6x

9 = 6x - 3x

9 = 3x

9/3 = x

3 = x

4.

15 - 4a = 31 - 8a

15 - 4a + 8a = 31

15 + 4a = 31

4a = 31 - 15

4a = 16

a = 16/4

a = 4

5.

32 - 14 = 6x - 18

18 = 6x - 18

18 + 18 = 6x

36 = 6x

36/6 = x

6 = x