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2014-05-22T20:03:30+03:00
A-b=95

a:b=6
a=6b

6b-b=95
5b=95
b=19
a=6*19=114

a+b=114+19=133
1 5 1
2014-05-22T20:06:26+03:00
A-b=95
a:b=6
a+b=?
a-b=95
a=95+b
(95+b):b=6
95+b   =6b
95=6b-b
95=5b
b=95:5
b=19
a=95+19
a=114
a+b=114+19
a+b=133(c)
1 5 1