abc1 = 7605 + 1abc
=> abc x 10 + 1 = 7605 + 1000 + abc
=> abc x 10 = 7604 + 1000 + abc
=> abc x 9 + abc = 8604 + abc
=> abc x 9 = 8604
=> abc = 8604 :9 = 956
abc x 10 + 1 =7605 +1000 + abc
abc x 9 =8604
abc = 8604 /9
abc =956
abc1 = 7605 + 1abc
abc x 10 + 1 = 7605 + 1000 + abc
abc x 10 - abc = 7605 + 1000 - 1
abc x [ 10 - 1 ] = 8604
abc x 9 = 8604
abc = 8604 : 9
abc = 956
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