document.write( "Question 1191937: Zac is four years younger than Alex. Lucas is twice Alex’s age. The sum of the ages equal 64. How old is Alex? \n" ); document.write( "
Algebra.Com's Answer #823809 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The given information compares the ages of both Zac and Lucas to the age of Alex, so use Alex's age as your starting point. \n" ); document.write( "x = Alex's age \n" ); document.write( "x-4 = Zac's age (4 younger than Alex) \n" ); document.write( "2x = Lucas's age (twice Alex's age) \n" ); document.write( "The sum of the ages is 64: \n" ); document.write( "(x)+(x-4)+(2x) = 64 \n" ); document.write( "4x-4 = 64 \n" ); document.write( "4x = 68 \n" ); document.write( "x = 17 \n" ); document.write( "ANSWER: Alex's age is x = 17 \n" ); document.write( " \n" ); document.write( " |