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2014-09-22T17:03:15+03:00
[(2x-5) : 5] -6 = 5
(2x-5):5 = 5+6
(2x-5):5 = 11
(2x-5)= 11x5
2x-5=55
2x=55+5
2x=60
x=60:2
x=30