document.write( "Question 1013121: If X is the midpoint of WY, WX=3x-1 and WY= 10x-26 find XY.
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document.write( "How do I do this? \n" );
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Algebra.Com's Answer #629294 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "It should be pointed out x and X are not the same thing. \n" ); document.write( "Using upper case and lower case of same letter as variables \n" ); document.write( "should be avoided, as it gets confusing. \n" ); document.write( ". \n" ); document.write( "WY - WX = XY \n" ); document.write( "(10x-26)-(3x-1)= XY \n" ); document.write( "7x-25 = XY \n" ); document.write( ". \n" ); document.write( "Since X is the midpoint, WX=XY: \n" ); document.write( "3x-1=7x-25 \n" ); document.write( "24=4x \n" ); document.write( "6=x \n" ); document.write( ". \n" ); document.write( "XY=7x-25=7(6)-26=42-25=17 \n" ); document.write( "ANSWER: XY=17 \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( ". \n" ); document.write( "WX=XY \n" ); document.write( "3x-1=17 \n" ); document.write( "3(6)-1=17 \n" ); document.write( "18-1=17 \n" ); document.write( "17=17 \n" ); document.write( " |