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2014-04-03T19:31:26+03:00
A+b=2250
a=b:2:4*2
 
a+b=2250
b:2:4*2+b=2250 /:2
b:2:4+b:2=1125 /*4
b:2+2b=4500 /*2
b+4b= 9000
5b=9000
b=1800

a=1800:2:4*2
a=900:4*2
a=225*2
a=450
9 4 9