document.write( "Question 1032737: How old would I be if I was 2/3 of my sisters age? We are seven years apart. \n" ); document.write( "
Algebra.Com's Answer #647353 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! How old would I be if I was 2/3 of my sisters age? \n" ); document.write( " We are seven years apart. \n" ); document.write( ": \n" ); document.write( "let y = \"your age\" \n" ); document.write( "then \n" ); document.write( "(y+7) = sister's age \n" ); document.write( ": \n" ); document.write( "y = \n" ); document.write( "multiply both sides by 3 \n" ); document.write( "3y = 2(y + 7) \n" ); document.write( "3y = 2y + 14 \n" ); document.write( "3y - 2y = 14 \n" ); document.write( "y = 14 is your age \n" ); document.write( ": \n" ); document.write( "; \n" ); document.write( "Your sister would be 21; 14 is 2/3 of 21. \n" ); document.write( " |