тогда
а + b = 967
a - b = 321 => a = 321 + b
321 + b + b = 967
2*b = 646
b = 323
a = 323 + 321 = 644
2. (2х+1)+(2х+1+2)+(2х+1+4)=669
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тогда
а + b = 967
a - b = 321 => a = 321 + b
321 + b + b = 967
2*b = 646
b = 323
a = 323 + 321 = 644
2. (2х+1)+(2х+1+2)+(2х+1+4)=669
6х+9=6696х=660
х=110
тогда числа (2*110+1)=221, 223, 225