document.write( "Question 808607: the sum of two numbers is 80.if the greater is increased by 10,it is equal to twice the smaller.find the numbers. \n" ); document.write( "
Algebra.Com's Answer #487104 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
x + y = 80
\n" ); document.write( "Make x the larger number.
\n" ); document.write( "x + 10 = 2y
\n" ); document.write( "x = 2y - 10
\n" ); document.write( "Substitute x = 2y - 10 into:
\n" ); document.write( "x + y = 80
\n" ); document.write( "(2y - 10) + y = 80
\n" ); document.write( "2y - 10 + y = 80
\n" ); document.write( "Collect like terms.
\n" ); document.write( "2y + y = 80 + 10
\n" ); document.write( "3y = 90
\n" ); document.write( "y = 30
\n" ); document.write( "Small number = 30
\n" ); document.write( "Large number = 50
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "
\n" );