document.write( "Question 777050: tina is twice the age of shelly. the sum of their ages is 65. how old is tina \n" ); document.write( "
Algebra.Com's Answer #473880 by sofiyac(983)\"\" \"About 
You can put this solution on YOUR website!
are you sure it's not 66 years old??\r
\n" ); document.write( "\n" ); document.write( "let shelly be x years old, then tina is 2x years old, sum means add so add their ages together
\n" ); document.write( "x+2x=65
\n" ); document.write( "3x=65 divide each side by 3
\n" ); document.write( "x=65/3
\n" ); document.write( "now to find tina's age you multiply that by 2 so 65*2/3=43.33
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