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2014-04-16T20:49:16+03:00
[(x,y*4)+8]-11,75=6,25
(x,y*4)+8=6,25+11,75=18
x,y*4=18-8=10
x,y=10/4
x,y=2,5

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2014-04-16T21:24:15+03:00
X= fractia cautata

4x+8-11,75=6,25

4x=6,25+11,75-8

4x=10

x=10/4=2,5
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