Question

resolver las siguientes ecuaciones

pls doy 200 puntos​

Answer 1

Explicación paso a paso:

1) 2x + 12 = 4x - 2

2x = 14

x = 7

2) 5x - 12 = 3

5x = 15

x = 3

3) 3(2x + 1) = 9

6x + 3 = 9

6x = 6

x = 1

4) 2(1 + x) = 3 + x

2 + 2x = 3 + x

x = 1

5) 4x + 3 = 21 - 2x

6x = 18

x = 3

Answer 2

Respuesta:

1)

$2x + 12 = 4x - 2 \\ 14 = 2x \\ = \frac{14}{2}$

2)

$5x - 12 = 3 \\ 5x = 15 \\ x = \frac{15}{5} \\ x = 3$

3)

$3(2x + 1) = - 9 \\ 6x + 3 = - 9 \\ 6x = - 12 \\ x = \frac{ - 12}{6} \\ x = - 2$

4)

$2(1 + x) = 3 + x \\ 2 + 2x = 3 + x \\ x = 1$

5)

$4x + 3 = 21 - 2x \\ 6x = 18 \\ x = \frac{18}{6} \\ x = 3$