document.write( "Question 1186457: A boy has twice as much money as his sister. If he gives P10 to his sister, they would have the sake amount. How much money did each have? \n" ); document.write( "

Algebra.Com's Answer #817365 by ikleyn(52824) $\"\"$ $\"About$

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\n" ); document.write( "A boy has twice as much money as his sister. If he gives P10 to his sister, they would have the sake amount.
\n" ); document.write( "How much money did each have?
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document.write( "x = sister.\r\n" );
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document.write( "2x = boy.\r\n" );
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document.write( "After giving P10 to the sister\r\n" );
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document.write( "    2x - 10 = x + 10\r\n" );
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document.write( "Simplify and solve\r\n" );
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document.write( "    2x - x = 10 + 10\r\n" );
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document.write( "       x   =    20\r\n" );
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document.write( "ANSWER.  Sister has P20;  boy has twice as much, i.e.  P40.\r\n" );
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document.write( "CHECK.   After giving  40 - 10 = 30 = 20 + 10.    ! Correct !\r\n" );
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