document.write( "Question 982043: Sofia is 7 years older than her cousin. In 4 years, she will be twice as old as her cousin. How old is each now? \n" ); document.write( "
Algebra.Com's Answer #602916 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "C=cousin's age; S=Sofia's age=C+7yrs
\n" ); document.write( ".
\n" ); document.write( "S+4yrs=2(C+4yrs)
\n" ); document.write( "S+4yrs=2C+8yrs
\n" ); document.write( "S=2C+4yrs Substitute for S
\n" ); document.write( "C+7yrs=2C+4yrs
\n" ); document.write( "3yrs=C ANSWER 1: Cousin is 3 years old.
\n" ); document.write( ".
\n" ); document.write( "S=C+7yrs=3yrs+7yrs=10yrs ANSWER 2: Sofia is 10 years old.
\n" ); document.write( ".
\n" ); document.write( "CHECK:
\n" ); document.write( "S+4yrs=2(C+4yrs)
\n" ); document.write( "10yrs+4yrs=2(3yrs+4yrs)
\n" ); document.write( "14yrs=2(7yrs)
\n" ); document.write( "14yrs=14yrs
\n" ); document.write( "
\n" );