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2010-{2009-[2009-2×(2008+2009:x)+2009]}=1

Răspuns :

2010-{2009-[2009-2×(2008+2009:x)+2009]}=1

2009-[2009-2×(2008+2009:x)+2009]=2010-1
2009-[2009-2×(2008+2009:x)+2009]=2009

2009-2×(2008+2009:x)+2009=2009-2009

2009-2×(2008+2009:x)+2009=0

2009-2×(2008+2009:x)=-2009
2×(2008+2009:x)=2009+2009
2×(2008+2009:x)=4018
2008+2009:x=4018:2
2008+2009:x=2009
2009:x=2009-2008
2009:x=1
x=2009:1=2009
2010-{2009-[2009-2×(2008+2009:x)+2009]}=1
2010-[2009-(2009-4016-4018:x+2009)]=1
2010-(2009-2009+4016+4018:x-2009)=1
2010-2009+2009-4016-4018:x+2009=1
3-4018:x=1
-4018:x=1-3
-4018:x=-2
x=2009

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