document.write( "Question 1053139: the sum of 2 numbers is 20. seven times the smaller is 5 more than twice the larger. find each number \n" ); document.write( "

Algebra.Com's Answer #668386 by addingup(3677) $\"\"$ $\"About$

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x+y = 20 subtract x on both sides: y = 20-x We'll use this value for y next.
\n" ); document.write( "7*x = 2y+5 substitute for y:
\n" ); document.write( "7*x = 2(20-x)+5
\n" ); document.write( "7x = 40-2x+5
\n" ); document.write( "9x = 45
\n" ); document.write( "x = 5 <-- this is the small number. The big number
\n" ); document.write( "5+y = 20
\n" ); document.write( "y = 15 this is the big number
\n" ); document.write( ":
\n" ); document.write( "Happy learning,
\n" ); document.write( "John \n" ); document.write( "

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