document.write( "Question 394915: The sum of the ages of a brother and sister is 26. If four times the brother's age is subtracted from three times the sister's age, the difference is 8. What are the ages of the brother and sister, respectively? \n" ); document.write( "
Algebra.Com's Answer #280278 by mananth(16946)![]() ![]() You can put this solution on YOUR website! The sum of the ages of a brother and sister is 26. If four times the brother's age is subtracted from three times the sister's age, the difference is 8. What are the ages of the brother and sister, respectively?\r \n" ); document.write( "\n" ); document.write( "... \n" ); document.write( "x------------- brother \n" ); document.write( "y= ------------sister \n" ); document.write( "x+y =26.....................1 \n" ); document.write( "3y-4x=8.....................2 \n" ); document.write( "multiply (1) by 4 \n" ); document.write( "we get \n" ); document.write( "4x+4y = 104 \n" ); document.write( "add this to (2) \n" ); document.write( "7y= 112 \n" ); document.write( "/7 \n" ); document.write( "y = 16 sisters age \n" ); document.write( "26-16 = 10 brothers age \n" ); document.write( ".. \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |