document.write( "Question 949792: Steven is 12 years older than chris, last year he was twice as old as chris. how old are they now? \n" ); document.write( "
Algebra.Com's Answer #579878 by macston(5194)\"\" \"About 
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S=Steven's age; C=Chris's age
\n" ); document.write( "S=C+12
\n" ); document.write( "S-1=2(C-1) Substitute for S
\n" ); document.write( "C+12-1=2C-2 Add 2 to each side,
\n" ); document.write( "C+13-2C Subtract C from each side.
\n" ); document.write( "13=C ANSWER 1: Chris is 13 years old.
\n" ); document.write( "S=C+12=13+12=25 ANSWER 2: Steven is 25 years old.
\n" ); document.write( "CHECK
\n" ); document.write( "S-1=2(C-1)
\n" ); document.write( "25-1=2(13-1)
\n" ); document.write( "24=2(12)
\n" ); document.write( "24=24
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