document.write( "Question 762196: the sum of two numbers,x and y is 140. if x is 34 greater than y,write down two equations in x and y.solve them to find the two numbers? \n" ); document.write( "

Algebra.Com's Answer #463752 by Stitch(470) $\"\"$ $\"About$

You can put this solution on YOUR website!
Equation 1: $\"X+%2B+Y+=+140\"$
\n" ); document.write( "Equation 2: $\"X+=+34+%2B+Y\"$
\n" ); document.write( "----------------------------
\n" ); document.write( "Plug (34 + Y) into equation 1 for X
\n" ); document.write( "Equation 1: $\"X+%2B+Y+=+140\"$
\n" ); document.write( " $\"%2834+%2B+Y%29+%2B+Y+=+140\"$
\n" ); document.write( "Combine like terms
\n" ); document.write( " $\"34+%2B+2Y+=+140\"$
\n" ); document.write( "Subtract 34 from both sides.
\n" ); document.write( " $\"2Y+=+106\"$
\n" ); document.write( "Divide both sides by 2.
\n" ); document.write( " $\"highlight%28Y+=+53%29\"$
\n" ); document.write( "Now plug 53 into equation 2 for Y.
\n" ); document.write( "Equation 2: $\"X+=+34+%2B+Y\"$
\n" ); document.write( " $\"X+=+34+%2B+%2853%29\"$
\n" ); document.write( " $\"highlight_green%28X+=+87%29\"$ \n" ); document.write( "

\n" );