Posted by Ellen on Saturday, July 28, 2012 at 4:12pm.
Solve using set builder notation, show all work. 12x25 is greater than or = to 3x5(x+6)

Algebra  Bosnian, Saturday, July 28, 2012 at 5:49pm
5 ( x + 6 ) = 5 x + 30
12 x  25 ¡Ý 3 x  5 ( x + 6 )
12 x  25 ¡Ý 3 x  ( 5 / x  6 ) )
12 x  25 3 x  ( 5 x + 30 )
12 x  25 ¡Ý 3 x  5 x  30
12 x  25 ¡Ý  2 x  30
Add 2 x to both dides
12 x  25 + 2 x ¡Ý  2 x + 2 x  30
14 x  25 ¡Ý  30 Add 25 to both sides
14 x  25 + 25 ¡Ý  30 + 25
14 x ¡Ý  5 Divide both sides by 14
x ¡Ý  5 / 4

Algebra  Bosnian, Saturday, July 28, 2012 at 5:50pm
Remark:
¡Ý
mean greater or equal
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