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2014-08-25T12:22:36-03:00
X + (x+1) =25
x+x+1=25
2x= 25 -1
2x= 24
x= 24/2
×=12

Logo os numeros sao 12 e 13, pois

x=12
x+ 1 = 12+1 = 13
1 5 1
2014-08-25T12:23:38-03:00
X + (x+1) =25
x+x+1=25
2x= 25 -1
2x= 24
x= 24/2
×=12
x=12 
x+ 1 = 12+1 = 13