Respostas

2014-07-29T17:33:10-03:00
4(x-2) +5 - 3x 
4(8-2) +5 - 3(8)
4(6) +5 - 24
24 + 5 - 24
5
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6x - 12y + 3(6y + 3)
6(2) - 12(1/2) + 3[6(1/2) + 3]
12 - 6 + 3[3 + 3]
6 + 3[6]
6+18 = 24