document.write( "Question 463602: solve the system of equations and enter the solution as an ordered pair:
\n" ); document.write( "3x-5y=-7
\n" ); document.write( "9x-7y=89 \n" ); document.write( "

Algebra.Com's Answer #317618 by lwsshak3(11628) $\"\"$ $\"About$

You can put this solution on YOUR website!
solve the system of equations and enter the solution as an ordered pair:
\n" ); document.write( "3x-5y=-7
\n" ); document.write( "9x-7y=89
\n" ); document.write( "...
\n" ); document.write( "3x-5y=-7
\n" ); document.write( "multiply by -3
\n" ); document.write( "-9x+15y=21
\n" ); document.write( "9x-7y=89
\n" ); document.write( "add
\n" ); document.write( "8y=110
\n" ); document.write( "y=110/8=13.75
\n" ); document.write( "3x=-7+5y=-7+5(13.75)=61.75
\n" ); document.write( "x=61.75/3=20.58
\n" ); document.write( "solution (20.58,13.75) (point of intersection)
\n" ); document.write( "see graph below as a visual check on answer
\n" ); document.write( "...
\n" ); document.write( "y=(3x+7)/5
\n" ); document.write( "y=(9x-89)/7
\n" ); document.write( " $\"+graph%28+300%2C+300%2C+-40%2C+40%2C+-40%2C+40%2C%283x%2B7%29%2F5%2C%289x-89%29%2F7%29+\"$ \n" ); document.write( "

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