document.write( "Question 445649: need help Bobbys grandfather is 6 years older than 7 times bobbys age.the difference in their ages is 72years.how old is bobby and his grandfather \n" ); document.write( "
Algebra.Com's Answer #306952 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Bobbys grandfather is 6 years older than 7 times bobbys age.the difference in their ages is 72years.how old is bobby and his grandfather
\n" ); document.write( "--------------------
\n" ); document.write( "Equations:
\n" ); document.write( "G = 7B+6
\n" ); document.write( "G - B = 72
\n" ); document.write( "------------------
\n" ); document.write( "Substitute for \"G\" and solve for \"B\":
\n" ); document.write( "7B+6 - B = 72
\n" ); document.write( "---
\n" ); document.write( "6B = 66
\n" ); document.write( "---
\n" ); document.write( "B = 11 yrs old (Bobby's age now)
\n" ); document.write( "----
\n" ); document.write( "Solve for \"G\":
\n" ); document.write( "G = 7B+6
\n" ); document.write( "G = 7*11+6 = 77+6 = 83 yrs old (Grandpa's age now)
\n" ); document.write( "======================================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "===============
\n" ); document.write( "
\n" );