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2014-01-14T20:10:59+07:00
1/2 x + 5 > 15
1/2 x + 5 = 15
1/2 x = 15 - 5
1/2 x = 10
x = 20
x > 20
2014-01-14T20:14:03+07:00
0,5x + 5 > 15
0,5x > 15 - 5
0,5x > 10
x > 20