Question

Resuelve estas ecuaciones:
A) (X+28) +15 = 2 ( X+15)
B) ( 2X+1) = 8- ( 3X+3)
C) 2 (X-7)=6(X+1)
D)2(X-5)=5(X-4)
E)6(X-4)=3(X-3)
F)3(X-3)-4(X-5)=6
G)6(X-3)+5(X+4)=15

Answer 1

(x + 28) + 15 = 2 (x + 15)

x + 28 + 15 = 2x + 30

x  + 43 = 2x + 30

x - 2x = 30 - 43

- x = - 13

x = 13
-----------------------------------
(2x + 1) = 8 - (3x + 3)

2x + 1 = 8 - 3x - 3

2x + 3x = 8 - 3 - 1

5x = 4

x = 4/5
---------------------------------------

2 (x - 7) = 6 (x + 1)

2x - 14 = 6x + 6

2x - 6x = 6 + 14

- 4x = 20

x = 20/-4

x = - 5
----------------------------------------
2 (x - 5) = 5 (x - 4)

2x - 10 = 5x - 20

2x - 5x = - 20 + 10

- 3x = - 10

x = -10/-3

x = 10/3
-----------------------------------------
6 (x - 4 = 3 (x - 3)

6x - 24 = 3x - 9

6x - 3x = - 9 + 24

3x = 15

x = 15/3

x = 5
---------------------------------------------

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

3x - 9 - 4x + 20 = 6

3x - 4x + 20 - 9 = 6

- x + 11 = 6

- x = 6 - 11

- x = - 5

x = 5
-------------------------------------

6 (x - 3) + 5 (x + 4) = 15

6x - 18 + 5x + 20 = 15

11x + 2 = 15

11x = 15 - 2

11x = 13

x = 13/11

Nota : No publiques tantas tareas de una. Se demora mucho. Gracias y suerte.