document.write( "Question 1181492: Samuel is seven years older than his sister Bella. In two years, he will be twice as old as she. how old are they now? \n" ); document.write( "
Algebra.Com's Answer #811389 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Informally.... \n" ); document.write( "The difference between their ages is 7 years. \n" ); document.write( "So when Samuel is twice as old as Bella, their ages will be 14 and 7. \n" ); document.write( "Since that will be 2 years from now, their current ages are 12 and 5. \n" ); document.write( "Formally.... \n" ); document.write( "s = Bella's age now \n" ); document.write( "s+7= Samuel's age now \n" ); document.write( "s+2 = Bella's age in 2 years \n" ); document.write( "s+9 = Samuel's age in 2 years \n" ); document.write( "Samuel's age in 2 years will be twice Bella's age then: \n" ); document.write( "s+9 = 2(s+2) \n" ); document.write( "Solve for s using basic algebra; then the answers are s and s+7. \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |