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rezolva ecuatia :
9(x-2)-5x+7=4(x-3)+1


Răspuns :

9(x-2)-5x+7=4(x-3)+1
9x-18-5x+7=4x-12+1
9x-5x-4x=18-7-12+1
x=0

9(x-2)-5x+7=4(x-3)+1
9x-18-5x+7=4x-12+1
4x-11=4x-11