Respuestas

  • Usuario de Brainly
2013-03-13T19:42:38+01:00

39.8x + 97.5 - 39.85 = -18.9x +55.5 -101.20

312x + 485 - 3315 =  - 162x  + 275 - 2020

312x  + 162x = 275 - 2020 + 3315- 485

150x = 1085

x = 1085 /150

x = 7, 23333.....

x = 651/90

 

7x+ 1/2 + 3/8 - 1/4 = -16x + 1/4 + 2/16

7x + 16x = 1/4 +2/16 + 1/4 - 3/8 - 1/2

23x = 4/16 + 2/16 + 4/16 - 6/16 - 8/16

23x = -4/16

x = - 4/16 : 23

x = - 4 / 368

x = - 1 /92

 

espero que te sirva, salu2!!!