document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1113877>Question 1113877</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given  x&#8801;19(mod5)\r<BR>\n" );
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document.write( "Identify which one of the following options gives integers that are valid solutions for x ?<BR>\n" );
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document.write( "-19 and 7<BR>\n" );
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document.write( "-11 and 54<BR>\n" );
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document.write( "7 and 26<BR>\n" );
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document.write( "11 and 26\r<BR>\n" );
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document.write( "Answer: <font color=red>Choice B)  -11 and 54</font>\r<BR>\n" );
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document.write( "Reason\r<BR>\n" );
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document.write( "If a = b (mod n) then a-b is a multiple of n.<BR>\n" );
document.write( "It means that a-b = nk for some integer k.\r<BR>\n" );
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document.write( "<font color=red>-11</font> = 19 (mod 5) because -11-19 = -30 is a multiple of 5.<BR>\n" );
document.write( "<font color=red>54</font> = 19 (mod 5) because 54-19 = 35 is a multiple of 5.<BR>\n" );
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