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2014-11-10T00:04:43+02:00
=6x+3-1=32
=6x+2=32
=> 6x=32-2=30
x=30 : 6 = 5 . 
2014-11-10T00:05:06+02:00
6x+3-1=32
6x= 32+1-3
6x= 30
x= 5