document.write( "Question 1204684: Mary’s age is 3 more than twice her brother’s age. The sum of their ages is 33. What is Mary’s age? \n" ); document.write( "
Algebra.Com's Answer #841099 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Mary’s age is 3 more than twice her brother’s age.\r \n" ); document.write( "\n" ); document.write( "Let brother's age be x years\r \n" ); document.write( "\n" ); document.write( "Mary's age will be (2x+3)\r \n" ); document.write( "\n" ); document.write( " The sum of their ages is 33. What is Mary’s age?\r \n" ); document.write( "\n" ); document.write( "x+2x+3=33\r \n" ); document.write( "\n" ); document.write( "3x+3=33 \n" ); document.write( "subtract 3 from both sides\r \n" ); document.write( "\n" ); document.write( "3x=30 \n" ); document.write( "divide by 3 \n" ); document.write( "x=10\r \n" ); document.write( "\n" ); document.write( "Brother's age = 10 years \n" ); document.write( "Mary's age = 2x+3 = 2(10)+3= 23 years\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |