document.write( "Question 751569: {(y=4x-7)(y=9x-8)
\n" ); document.write( "how would you find the answer to this using the substitution method
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\n" ); document.write( "Y=________
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Algebra.Com's Answer #457268 by MathLover1(20849) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"y=4x-7\"$ .......eq.1\r
\n" ); document.write( "\n" ); document.write( " $\"y=9x-8\"$ ........eq.2
\n" ); document.write( "____________________________substitute $\"y\"$ from eq.1 in eq.2\r
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\n" ); document.write( "\n" ); document.write( " $\"4x-7=9x-8\"$ ........eq.2....solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"8-7=9x-4x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"1=5x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"1%2F5=x\"$ or $\"0.2=x\"$ \r
\n" ); document.write( "\n" ); document.write( "now find $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=4x-7\"$ .......eq.1\r
\n" ); document.write( "\n" ); document.write( " $\"y=4%280.2%29-7\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=0.8-7\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=-6.2\"$ \r
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