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?
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Algebra.Com's Answer #770308 by addingup(3677)![]() ![]() 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( " |