document.write( "Question 1056093: If Brian is seven years younger than his brother then in two years his brother will be twice as old as Brian is now. How old is Brian and his brother. \n" ); document.write( "

Algebra.Com's Answer #671261 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = Brian's age now
\n" ); document.write( "Let $\"+b+\"$ = his brother's age now
\n" ); document.write( "----------------------------------
\n" ); document.write( "(1) $\"+a+=+b+-+7+\"$
\n" ); document.write( "(2) $\"+b+%2B+2+=+2a+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "(1) $\"+b+=+a+%2B+7+\"$
\n" ); document.write( "Plug this result into (2)
\n" ); document.write( "(2) $\"+a+%2B+7+%2B+2+=+2a+\"$
\n" ); document.write( "(2) $\"+a+=+9+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+b+=+a+%2B+7+\"$
\n" ); document.write( "(1) $\"+b+=+9+%2B+7+\"$
\n" ); document.write( "(1) $\"+b+=+16+\"$
\n" ); document.write( "----------------------------
\n" ); document.write( "Brian is 9
\n" ); document.write( "His brother is 16
\n" ); document.write( "------------------------
\n" ); document.write( "check:
\n" ); document.write( "In 2 yrs, his brother will be 18
\n" ); document.write( "That is twice Brian's age now
\n" ); document.write( "OK \n" ); document.write( "

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