abc=6abc : 17=> abc * 17=6abc
abc* 17 = 6abc
abc * 17= 6000 + abc
abc * 16=6000
abc=6000:16=375
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\(abc=6abc\div17\)
\(abc\times17=6abc\)
\(abc\times17=6000+abc\)
\(abc\times16=6000\)
\(abc=6000\div16\)
\(abc=375\)
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