Question

Necesito ayuda con estas 8 ecuaciones: 1) -3x + 9 = -3 + 2x - 8 resolver y verificar 2) -x -3 - 5x = -27 resolver y verificar 3) 2x - 6 = 3x - 36 + x resolver y verificar 4) 7x - 12 - 12x = -x + 12 resolver y verificar 5) -14 + 3x = 4x + 21 + 4x resolver y verificar 6) -8x - 10 + 2x = 5x - 3x + 6 resolver y verificar 7) x - 8x - 4 + 7 = 18 + 3x + 5 resolver y verificar 8) -7x + 11 + 4x - 8 = -18 resolver y verificar

Answer 1

Respuesta:

1) -3x + 9 = -3 + 2x - 8 resolver y verificar

9 + 3 + 8 = 2x + 3x

20 = 5x

4 = x

2) -x -3 - 5x = -27 resolver y verificar

-6x = -24

x = -24 / -6

x = 4

3) 2x - 6 = 3x - 36 + x resolver y verificar

-6 + 36 = 3x + x - 2x

30 = 2x

15 = x

4) 7x - 12 - 12x = -x + 12 resolver y verificar

-12 - 12 = -x - 7x + 12x

- 24 = 4x

-6 = x

5) -14 + 3x = 4x + 21 + 4x resolver y verificar

-14 - 21 = 4x + 4x - 3x

-35 = 5x

-7 = x

6) -8x - 10 + 2x = 5x - 3x + 6 resolver y verificar

-10 - 6 = 5x - 3x + 8x - 2x

-16 = 8x

-2 = x

7) x - 8x - 4 + 7 = 18 + 3x + 5 resolver y verificar

-4 + 7 - 18 - 5 = 3x -x + 8x

-20 = 10x

-2 = x

8) -7x + 11 + 4x - 8 = -18 resolver y verificar

- 3x + 3 = - 18

18 + 3 = 3x

21 = 3x

7 = x