document.write( "Question 705325: you were 4 years old,your sister was 3 times your age,now that your are 12 years old,how old is your sister \n" ); document.write( "

Algebra.Com's Answer #434519 by Stitch(470) $\"\"$ $\"About$

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When you were 4, your sister was three times your age.
\n" ); document.write( "4*3 = 12
\n" ); document.write( "When you were 4 your sister was 12.
\n" ); document.write( "Now you are 12.
\n" ); document.write( "12-4 = 8
\n" ); document.write( "Add 8 to your sister's past age
\n" ); document.write( "12 + 8 = 20
\n" ); document.write( "Now that you are 12, your sister is 20 \n" ); document.write( "

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