document.write( "Question 669061: * Using charts in Solving Problem
\n" ); document.write( "Ben is now twice a sold as Robin. Ben's prsent age is ten years greater than Robin's age one year ago. How old is Ben?
\n" ); document.write( " verbal model, equation, solve, and check \n" ); document.write( "

Algebra.Com's Answer #416071 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+b+\"$ = Ben's age now
\n" ); document.write( "Let $\"+r+\"$ = Robin's age now
\n" ); document.write( " $\"+r+-+1+\"$ = Robin's age 1 year ago
\n" ); document.write( " $\"+r+-+1+%2B+10+\"$ = 10 greater than Robin's age 1 year ago
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+b+=+2r+\"$
\n" ); document.write( "(2) $\"+b+=+r+-+1+%2B+10+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+2r+=+r+-+1+%2B+10+\"$
\n" ); document.write( "(2) $\"+r+=+9+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+b+=+2r+\"$
\n" ); document.write( "(1) $\"+b+=+18+\"$
\n" ); document.write( "Ben is 18\r
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