Question

ayuda es urgente por favor os lo pido​

Answer 1

Explicación paso a paso:

1. x + 7 = 12x - 3 - 8x + 1

x - 12x + 8x = -3 + 1 -7

-3x = -9

x = -9 / -3

x = 3

2. 3x + 5(2x - 1) = 8 - 3(4 - 5x)

3x + 10x - 5 = 8 - 12 + 15x

13x - 5 = - 4 + 15x

13x - 15x = 5 - 4

-2x = 1

x = -1/2

3. a) (5 - 3x) / 4 = 6x - 1

5 - 3x = 4(6x - 1 )

5 - 3x = 24x - 4

- 3x - 24x = - 4 -5

-27x = -9

x = -9/-27

x = 1/3

b) (4x / 2) + x = (6x / 3) + 7

2x + x = 2x + 7

3x - 2x = 7

x = 7