document.write( "Question 1163711: The sum of Sofia's age and Sonya's age is 65. Eleven years ago, Sonya was seven less than four times as old as Sofia. Find Sofia's age now. \n" ); document.write( "

Algebra.Com's Answer #787901 by MathTherapy(10552) $\"\"$ $\"About$

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The sum of Sofia's age and Sonya's age is 65. Eleven years ago, Sonya was seven less than four times as old as Sofia. Find Sofia's age now.
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Let Sofia's age be S
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document.write( "Then Sonya's is: 65 - S
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document.write( "We then get: 65 - S - 11 = 4(S - 11) - 7
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document.write( "54 - S = 4S - 44 - 7
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document.write( "- S - 4S = - 44 - 7 - 54
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document.write( "- 5S = - 105
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document.write( "Sofia, or  \n" );
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