document.write( "Question 1148975: Maria is 8 years older than her brother, and the sum of their ages is 72 years. How old is her brother?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #770308 by addingup(3677)\"\" \"About 
You can put this solution on YOUR website!
M + b = 72
\n" ); document.write( "M + 8 = b
\n" ); document.write( "therefore:
\n" ); document.write( "M + M + 8 = 72
\n" ); document.write( "solve for M:
\n" ); document.write( "2M + 8 = 72
\n" ); document.write( "2M = 64
\n" ); document.write( "M = 32
\n" ); document.write( "and her brother is 32 + 8 = 40
\n" ); document.write( "
\n" );