Respuestas

2012-11-19T03:26:18+01:00

1)  3x/7=-5

      3x=-7*5

     3x=-35

  x=-35/3

 

2)

5x/6=3/4

20x=18

x=18/20

x=9/10

 

3)

 x/5= -3/10

10x=-15

x=-5/10

x=-1/2


 

 

 

2012-11-19T03:30:59+01:00

3x/5 = -5

Aqui "x" vale   x=(-5*5)/3     x= -35/3

5x/6= 3/4 

Aqui "x" vale   5x=(3/4)*6     x= 18/20

x/5= -3/10

Aqui "x" vale   x=(-3/10)*5     x=-3/2