Respuestas

  • Usuario de Brainly
2012-10-18T01:09:15+02:00

4-2(d+7) - (3d+5) = 2d+ (4d-9+3d) - (d-3)

4-2d-14-3d-5=2d+4d-9+3d-d+3

-15-5d=8d-6

-15+6=8d+5d

-9=13d

d=-9/13

d= -0.69