document.write( "Question 1013154: What is the answer to x+2y=10
\n" ); document.write( " 2x-y=5? using the substitution method? \n" ); document.write( "

Algebra.Com's Answer #629358 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( " $\"x%2B2y=10\"$ .........eq.1
\n" ); document.write( " $\"2x-y=5\"$ ..........eq.2
\n" ); document.write( "----------------------------- \r
\n" ); document.write( "\n" ); document.write( "using the substitution method, first solve $\"x%2B2y=10\"$ .........eq.1 for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=10-2y\"$ .........substitute it in eq.2\r
\n" ); document.write( "\n" ); document.write( " $\"2%2810-2y%29-y=5\"$ ........solve for $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20-4y-y=5\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20-5y=5\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20-5=5y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"15=5y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"15%2F5=y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28y=3%29\"$ \r
\n" ); document.write( "\n" ); document.write( "now substitute it in $\"x=10-2y\"$ and find $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=10-2%2A3\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=10-6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x=4%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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