Question

Porfavor ayudaa ;C

10x + 8 = 6x -12 x = ____

6x + 3x + 8 = 4x + 28 x = ____

8x + 3 + 12 = 6x + 13 + 6 x = ____

9x + 6 + 17 = 3x - 13 x = ____

18x + 36 = 9x + 72 x= ____

Answer 1

Respuesta:

10x+8 = 6x-12

10x/2+8/2=6x/2-12/2

5x+4=3x-6

(5-3)x = -6-4

2x = -10

2x/2 = -10/2

x = -5

6x+3x+8 = 4x+28

9x+8 = 4x+28

8-28 = 4x-9x

-20 = -5x

-20/-5 = -5x/-5

4 = x

x = 4

9x+6+17 = 3x-13

9x+23 = 3x-13

(9-3)x = -13-23

6x = -36

6x/6 = -36/6

x = -6

18x+36 = 9x+72

18x/9+36/9 = 9x/9+72/9

2x+4 = x+8

4-8 = x-2x

-4 = -x

-x = -4

-x/-1 = -4/-1

x = 4

Espero ello te sea útil.

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