document.write( "Question 977366: If a number is increased by 7 and that result is divided by 2, the number 5 is obtained. Find the original number.
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Algebra.Com's Answer #598888 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "Make the number 'x' \n" ); document.write( "Number is increased by 7 \n" ); document.write( "=> x + 7 \n" ); document.write( "That result is divided by 2 \n" ); document.write( "=> (x + 7)/2 \n" ); document.write( "The number 5 is obtained. \n" ); document.write( "=> (x + 7)/2 = 5 \n" ); document.write( "Cross multiply \n" ); document.write( "=> x + 7 = 10 \n" ); document.write( "Take 7 off each side of the equation \n" ); document.write( "=> x + 7 - 7 = 10 - 7 \n" ); document.write( "=> x = 3 \n" ); document.write( "This is the original number. \n" ); document.write( "Hope this helps:-) \n" ); document.write( " \n" ); document.write( " |