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2014-07-01T10:25:03+03:00
A+b=180
a:b=4,2
a=4b+2

4b+2+b=180
5b=180-2
5b=178
b=35.6

a=35,6*4+2
a=142.4+2
a=144.4

VERIFICARE

144.4+35.6=180 ADEVARAT