document.write( "Question 356202: Dad is 42 years old and his son is 10. In how many years will Dad be 3 times as old as his son? \n" ); document.write( "
Algebra.Com's Answer #254261 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let the number of years after which dad is 3 times be x \n" ); document.write( "42+x = 3(10+x) \n" ); document.write( "42+x = 30+3x \n" ); document.write( "42-30=3x-x \n" ); document.write( "12=2x \n" ); document.write( "x=6 after 6 years. \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |