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2014-11-06T15:50:45+02:00
A + b + c = 490
a : c = 2 rest 49
b : c = 1 rest 53
a = 2c + 49
b = 1c + 53
2c + 49 + 1c + 53 + c = 490
4c = 490 - 102
4c = 388
c = 388 : 4
c = 97
a = 2 * 97 + 49
a = 243
b = 97 + 53
b = 150