Posted by **barb** on Sunday, August 22, 2010 at 9:47pm.

5(3+4x)-6>=129

I get 2 different answers on this one.

15+20x-6>=129

15+20x-6+6>=129+6

15+20x>=135

15-15+20x>=135-15

20x>=120

20x/20>=120/20

x>=6

Is this worked out properly, are there any shortcuts?

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