document.write( "Question 1138434: Each side of a square is increased 9 inches. When this happens, the area is multiplied by 16. How many inches in the side of the original square? \n" ); document.write( "

Algebra.Com's Answer #756237 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( " =     =====>  take square root of both sides  ====>\r\n" );
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document.write( "x + 9 = 4x\r\n" );
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document.write( "9 = 4x - x = 3x\r\n" );
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document.write( "x = 9/3 = 3.\r\n" );
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document.write( "ANSWER.  The original square side length is 3 inches.\r\n" );
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document.write( "CHACK.    = 144;    = 16*9 = 144.    ! Correct !\r\n" );
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\n" ); document.write( "\n" ); document.write( "Regarding the post by @Theo and comparing it with my, I notice that in his solution he makes a lot (tons (!) ) unnecessary calculations.\r
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