document.write( "Question 1108538: Henry´s dad is 18 years older than him. His dad will be twice as old as Henry after 10 years. What is the present age of Henry? \n" ); document.write( "
Algebra.Com's Answer #723534 by SimsonNettikadan(1)![]() ![]() You can put this solution on YOUR website! Henry's age = x \n" ); document.write( "Dad's age = x + 18\r \n" ); document.write( "\n" ); document.write( "After 10 years....\r \n" ); document.write( "\n" ); document.write( "Henry's age = x + 10 \n" ); document.write( "Dad's age = x + 18 + 10\r \n" ); document.write( "\n" ); document.write( "(x + 18) + 10 = (x + 10) * 2 \n" ); document.write( "x + 28 = 2x + 20 \n" ); document.write( "x - 2x = 20 - 28 \n" ); document.write( "(-x) = (-8) \n" ); document.write( "x = 8\r \n" ); document.write( "\n" ); document.write( "Henry's present age = x = 8 \n" ); document.write( "Dad's present age = x + 18 = 8 + 18 = 26 \n" ); document.write( " |