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2014-01-29T21:42:32+02:00

[(a:2):4+2a]+26=98/-26

a:8+2a=72/*8

a+2a=576

3a=576/:3

a=192

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2014-01-29T22:44:54+02:00
32 cred


x  
2      
+x+x=72
4
x
+4x+4x =288
2
9x=288
x=32

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