abc1-1abc=7506
(10abc+1)-(1000+abc)=7506
10abc+1-1000-abc=7506
10abc-abc=7506+1000-1
(10-1)abc=8505
9abc=8505
abc=8505:9
abc=945
abc1 - 1abc = 7506
=> abc x 10 + 1 - 1000 - abc = 7506
=> abc x 9 - 999 = 7506
=> abc x 9 = 8505
=> abc = 945
abc1-1abc=7506
(10abc+1)-(1000+abc)=7506
10abc+1-1000-abc=7506
10abc-abc=7506+1000-1
(10-1)abc=8505
9abc=8505
abc=8505:9
abc=945
abc1 - 1abc = 7506
=> abc x 10 + 1 - 1000 - abc = 7506
=> abc x 9 - 999 = 7506
=> abc x 9 = 8505
=> abc = 945
tim so abc biet abc1-1abc=7506
tim so ABC biet ABC1-1ABC=7506
tim so abc biet abc1 - 3105 = 1abc
Tim so abc, biet : Abc1 - 1abc = 7506
tim abc biet abc1-2889=1abc
2. neu gap doi ban kinh hinh tron thi dien tich la 1256cm2. tim dien tich ban dau
3.chu so tan cung cua 2 x 12 x 22 x 32 x 42 x ..........................................x 2002 x 2012 x 2022 la ?
4. tim abc biet :
a,bc + ab,c = 21.12
abc1 - 1abc = 7506
abc - 6abc : 17
abc1-3105=1abc tim abc
tìm số abc biet
a, abc5 - 5abc = 3519
b, abc1-3105=1abc
c, abc6=3111+abc
tim so abc biet ; abc=6abc/17
so do la...