Question

ayuda pls con estas operaciones me demore mucho asi que colaboren uwu
3 x + 5 = 5 x - 13
5( 7 - x ) = 31 - x
4 ( 2 -3 x ) = - 2x - 27
6x -8 = 4 (- 2x + 5)
3( 4 x +7) = 4x -25
7 x + 15 = 3 ( 3x - 7)

Answer 1

Respuesta:

3 x + 5 = 5 x - 13

13 + 5 = 5x - 3x

18 = 2x

9 = x

5( 7 - x ) = 31 - x

35 - 5x = 31 - x

35 - 31 = 5x - x

4 = 4x

1 = x

4 ( 2 -3 x ) = - 2x - 27

8 - 12x = -2x - 27

27 + 8 = 12x - 2x

35 = 10x

3.5 = x

6x -8 = 4 (- 2x + 5)

6x - 8 = -8x + 20

6x +8x = 20 + 8

14x = 28

x = 2

3( 4 x +7) = 4x -25

12x + 21 = 4x - 25

12x - 4x =-25 - 21

8x = -46

x = -5.75

7 x + 15 = 3 ( 3x - 7)

7x + 15 = 9x - 21

21 + 15 = 9x - 7x

36 = 2x

18 = x

ESPERO QUE TE SIRVA