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2014-10-19T12:17:52+03:00
A + b +c=1229
b=2a
b= c-14 ⇒c= b+14 ⇒c= 2a+14

a+2a+2a+14=1229
5a+14=1229 ⇒ 5a=1229-14 = 1215
a= 1215 :5=243
b=2a= 2·243= 486
c=b+14 = 486+14= 500
4 4 4
2014-10-19T12:23:20+03:00
A+b+c=1229
b=2a   a=b/2
b=c-14  b+14=c
b/2+b+b+14=1229
b+2b+2b+28=2458
5b=2458-28
5b=2430
b=486
a=243
c=486+14=500
2 4 2