Question

responde las siguientes ecuaciones :

2x-34=-20
9x+8=7x+6
7x+9=3+9x
x-8=2x-11

Answer 1

2x - 34 = -20

$2 \times - 34 + 34 = - 20 + 34$

$2 \times = 14$

$\frac{2 \times }{2} = \frac{14}{2}$

$\times = 7$

9x + 8 = 7x +6

$9 \times + 8 - 8 = 7 \times + 6 - 8$

$9 \times = 7 \times - 2$

$9 \times - 7 \times = 7 \times - 2 - 7 \times$

$2 \times = - 2$

$\frac{2 \times }{2} = \frac{ - 2}{2}$

$\times = - 1$

7x + 9 = 3 + 9x

$7 \times + 9 = 9 \times + 3$

$7 \times + 9 - 9 = 9 \times + 3 - 9$

$7 \times = 9 \times - 6$

$7 \times - 9 \times = 9 \times - 6 - 9 \times$

$- 2 \times = - 6$

$\frac{ - 2 \times }{ - 2} = \frac{ - 6}{ - 2}$

$\times = 3$

x - 8 = 2x - 11

$\times - 8 + 8 = 2 \times - 11 + 8$

$\times = 2 \times - 3$

$\times - 2 \times = 2 \times - 3 - 2 \times$

$- \times = - 3$

$\frac{ - \times }{ - 1} = \frac{ - 3}{ - 1}$

$\times = 3$

Espero que te sirva

Atte:Silvana