document.write( "Question 638108: how to solve 4x+2y=10 and x-y=13 with substitution \n" ); document.write( "

Algebra.Com's Answer #402028 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( " $\"4x%2B2y=10\"$ .....1\r
\n" ); document.write( "\n" ); document.write( " $\"x-y=13\"$ ........2
\n" ); document.write( "___________________\r
\n" ); document.write( "\n" ); document.write( " $\"x-y=13\"$ .....solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=y%2B13\"$ ...substitute in 1
\n" ); document.write( "________________\r
\n" ); document.write( "\n" ); document.write( " $\"4%28y%2B13%29%2B2y=10\"$ .....1....solve for $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"4y%2B52%2B2y=10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"6y=10-52\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"6y=-42\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=-42%2F6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28y=-7%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=y%2B13\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=-7%2B13\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x=6%29\"$ \r
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