Respuestas

2012-11-22T04:45:36+01:00

2(x+5)/3 + 3x/10 = 7x+2/5+2/5


(2X+10)/3+3X/10=7X+4/5


(20X+100+9X)/30= 7X+4/5

 

(29X+100)/30=7X+4/5

 

(29X+100)=(35X+4)/5(30)

 

29X+100=(35X+4) .6

 

29X+100=210X+24

 

29X-210X=24-100

 

-181X=- 76

 

X= 76/181