Respuestas

2012-05-03T04:48:01+02:00

si es (6y)+5y=56 y=(56/11) x=(11,19)

si es 6x+5y=56 y=49,9x=-15,09

2012-05-03T05:26:12+02:00

6y+5y=56
11y=56


y=56/11


7x+4y=58
x=(58-4y)/7
x=(58-4(56/11))/7
x=(58-224/11)/7
x=(414/11)/7


x=414/77