document.write( "Question 818129: What is the formlae for the following:- Mary is 3 yrs younger than Bob who is going to be x years old a year from now. How old is Mary now? \n" ); document.write( "
Algebra.Com's Answer #492354 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
What is the formlae for the following:-
\n" ); document.write( "------------------------
\n" ); document.write( "Mary is 3 yrs younger than Bob who is going to be x years old a year from now. How old is Mary now?
\n" ); document.write( "-----
\n" ); document.write( "Equations:
\n" ); document.write( "m = b-3
\n" ); document.write( "------
\n" ); document.write( "b = x-1
\n" ); document.write( "----
\n" ); document.write( "Substitute and solve for \"m\":
\n" ); document.write( "m = (x-1)-3 = x-4 (Mary's age now)
\n" ); document.write( "------------------------------------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "===============
\n" ); document.write( "
\n" ); document.write( "
\n" );