document.write( "Question 1016898: Fatima is twice as old as her sister. In 5 years' time, she will be 2 years older than her sister. Make an equation and solve it to work out how old they both are now.
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Algebra.Com's Answer #633247 by FrankM(1040)![]() ![]() You can put this solution on YOUR website! F=2S\r \n" ); document.write( "\n" ); document.write( "F+5=(S+5)+2\r \n" ); document.write( "\n" ); document.write( "Substitute 2S for F in second equation\r \n" ); document.write( "\n" ); document.write( "2S+5=(S+5)+2\r \n" ); document.write( "\n" ); document.write( "2S+5=S+7\r \n" ); document.write( "\n" ); document.write( "S=2\r \n" ); document.write( "\n" ); document.write( "F=4 \n" ); document.write( " |