Respuestas

2013-10-13T22:03:09+02:00
Tenes que buscar despejar las incognitas:

4.(6-x) = 12
24-4x = 12
-4x = 12-24
-4x = -12
x = -12/-4
x = 3


2(m-2) = 5m-13
2m-4 = 5m-13
2m-5m = -13+4
-3m = -9
m = -9/-3
m = 3


5m(6-1) = 50
30m-5m = 50
25m = 50
m = 50/25
m = 2


Saludos desde Argentina.