Respostas

2014-04-28T16:07:28-03:00
5x/5 + 1/5 - 10x/5 = 45/5
5x+1-10x=45
5x-10x=45-1
-5x=44
x= - 44/5
x=-8,8

1 5 1
2014-04-28T16:22:58-03:00
X+ 1/5-2x= 9
5x +1-10x= 45
5x-10x=-1+45
5x = -44
x= - 44/5
x=8,8
1 5 1