document.write( "Question 622402: 1. A is 6 years older than B. In 5 years time their total age is 70. How old are they now? The answer is 33 and 27, but how do you calculate this? \n" ); document.write( "

Algebra.Com's Answer #391353 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
given:
\n" ); document.write( "(1) $\"+a+=+b+%2B+6+\"$
\n" ); document.write( "In 5 years, A's age will be $\"+a+%2B+5+\"$
\n" ); document.write( "In 5 years, B's age will be $\"+b+%2B+5+\"$
\n" ); document.write( "so,
\n" ); document.write( " $\"+a+%2B+5+%2B+b+%2B+5+=+70+\"$
\n" ); document.write( " $\"+a+%2B+b+%2B+10+=+70+\"$
\n" ); document.write( "(2) $\"+a+%2B+b+=+60+\"$
\n" ); document.write( "and, from (1),
\n" ); document.write( "(1) $\"+a+-+b+=+6+\"$
\n" ); document.write( "Now add the equations
\n" ); document.write( "(1) $\"+a+-+b+=+6+\"$
\n" ); document.write( "(2) $\"+a+%2B+b+=+60+\"$
\n" ); document.write( " $\"+2a+=+66+\"$
\n" ); document.write( " $\"+a+=+33+\"$
\n" ); document.write( "and, since
\n" ); document.write( "(2) $\"+a+%2B+b+=+60+\"$
\n" ); document.write( "(2) $\"+33+%2B+b+=+60+\"$
\n" ); document.write( "(2) $\"+b+=+60+-+33+\"$
\n" ); document.write( "(2) $\"+b+=+27+\"$
\n" ); document.write( "A is 33
\n" ); document.write( "B is 27 \n" ); document.write( "

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