document.write( "Question 880559: JOHN DAVID AND RAHEEL HAVE AVERAGE 68 MARBELS EACH. DAVID HAS 55 AND RAHEEL HAS 78 HOW MANY MARBEL DOES JHON HAVE
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Algebra.Com's Answer #531562 by KMST(5328) $\"\"$ $\"About$

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$\"x\"$ = number of marbles John has.
\n" ); document.write( "The average number of marbles per person is the sum of all the marbles divided by the number of persons, so
\n" ); document.write( " $\"%28x%2B55%2B78%29%2F3=68\"$ .
\n" ); document.write( "Multiplying both sides of the equal sign times 3 we get
\n" ); document.write( " $\"x%2B55%2B78=68%2A3\"$ ---> $\"x%2B133=204\"$ , and that is the total number of marbles.
\n" ); document.write( "Subtracting 133 from both sides of the equal sign we get
\n" ); document.write( " $\"x=204-133\"$ ---> $\"x=highlight%2871%29\"$ and that is how many marbles John has. \n" ); document.write( "

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