Respostas

2013-09-10T09:50:13-03:00
1. x + x+1 = 99
    2x = 98
    x = 48

2. x + x/4 = 55
    x/1 + x/4 = 55/1 (MMC=4)
    4x + x = 220
    5x = 220
    x = 44

3. x + x+1/2 = 44
    x/1 + x+1/2 = 44/1 (MMC=2)
    2x + x + 1 = 88
    3x = 88 -1
    3x = 87
    x = 29
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