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)\"\" \"About 
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\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.
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