document.write( "Question 552490: The average of numbers x, y and z is 7 and average of x and y is 5. Value of z is
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Algebra.Com's Answer #360319 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! (x+y+z)/3 = 7 \n" ); document.write( "x+y+z = 21 \n" ); document.write( "------ \n" ); document.write( "(x+y)/2 = 5 \n" ); document.write( "x+y = 10 \n" ); document.write( "---- \n" ); document.write( "z = 11 \n" ); document.write( " \n" ); document.write( " |