document.write( "Question 934678: the average age of 5 boys is 10, 2 new boys joined the group making the group average age 12, if the new boys are of the same age what is their actual age \n" ); document.write( "
Algebra.Com's Answer #567713 by TimothyLamb(4379)\"\" \"About 
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x = age of new boy A
\n" ); document.write( "y = age of new boy B
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\n" ); document.write( "(10*5 + x + y)/7 = 12
\n" ); document.write( "x = y
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\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x + y = 12*7 - 50
\n" ); document.write( "x - y = 0
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\n" ); document.write( "x + y = 34
\n" ); document.write( "x - y = 0
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\n" ); document.write( "solution:
\n" ); document.write( "solution:
\n" ); document.write( "x = age of new boy A = 17
\n" ); document.write( "y = age of new boy B = 17
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