document.write( "Question 691655: clara is one third her sister's age 4 years later clara will be 3less than half her her sister 's age what was clara s age 3 years ago \n" ); document.write( "

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clara is one third her sister's age 4 years later clara will be 3less than half her her sister 's age what was clara s age 3 years ago
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\n" ); document.write( "let x=clara's age 3 yrs ago
\n" ); document.write( "x+3=clara's present age
\n" ); document.write( "3(x+3)=sister's present age
\n" ); document.write( "4 years later:
\n" ); document.write( "(x+7=clara's age
\n" ); document.write( "(3(x+3)+4)=sister's age
\n" ); document.write( "3less than half of sister's age=(3(x+3)+4)/2-3
\n" ); document.write( "x+7=(3x+9+4)/2)-3
\n" ); document.write( "x+10=(3x+13)/2)
\n" ); document.write( "2x+20=3x+13
\n" ); document.write( "x=7
\n" ); document.write( "clara's age 3 yrs ago=7
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