Respostas

2014-06-08T15:04:40-03:00
X + 40/100 - 20/100 = 224
x + 20/100 = 224
20x/100 = 224 
20x = 22400
x = 22400/20
x = 1120
2014-06-08T15:06:08-03:00
X + 40/100 - 20/100 = 224
MMC = 100

100x + 40 - 20 = 22400
100x = 22380
x = 223,80