document.write( "Question 28150: If heidi's current age in years is multiplied by five and two years is subtracted from the answer the result is equal to her dad's age. In 8 years time the ages will be as such that heidi's dad will be three times as old as heidi. How old is heidi now?\r
\n" );
document.write( "\n" );
document.write( "i tried\r
\n" );
document.write( "\n" );
document.write( "x X 5 - 2 = Dads age\r
\n" );
document.write( "\n" );
document.write( "then i was thinking
\n" );
document.write( "x X 5 - 2 = 3(x X5 -2 )\r
\n" );
document.write( "\n" );
document.write( "I am stuck \n" );
document.write( "
Algebra.Com's Answer #15364 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! 5x-2=y --->y=5x-2 \n" ); document.write( "In eight years her dad's age = y+x \n" ); document.write( "In eight years her age = x+8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3(x+8)=y+8 \n" ); document.write( "SUbsitute: \n" ); document.write( "3x+24=5x-2+8 \n" ); document.write( "3x+24=5x+6 \n" ); document.write( "-2x=-18 \n" ); document.write( "x=9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y=5(9)-2 \n" ); document.write( "y=43\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, Heidi is 9 years old and her dad is 43 years old. \n" ); document.write( "Paul. \n" ); document.write( " |