Question

alguien me ayuda con las ecuaciones pongo mejor estrella a cualquier
​

Answer 1

Explicación paso a paso:

1> 6x - 2x = 20

4x = 20

X = 20/4

X = 5

2> 4x + 5x = 81

9x = 81

X = 9

3> x - 6x = -24

-5x = - 24

X = 24/5

X = 4,8

4>. 12x - 7x = -30

5x= - 30

X = - 6

5> 3x - 6x = -24

- 3x = -24

X= 8

6> 8x - 2x = - 15 - 3

6x = - 18

X = - 3

7> 10m - 13m = 20 - 29

-3m = -9

m= 3

8> 9 + 2x - 1 = 6x

9 - 1 = 6x - 2x

8 = 4x

2 = x

9> 14 - 3x + 2x = 5x

14 - x = 5x

14 = 6x

14/6 = x

Reduciendo sale:

7/3 = x

10> 6x +5 = x +40

6x - x = 40 - 5

5x = 35

X = 7

11> 7x - 3 = 3x + 13

7x - 3x = 13 + 3

4x = 16

X = 4

Listo ahí esta...