document.write( "Question 470006: I have to graph the following two equations on the same graph y=.05x+60 and y=.15x+40. I need help solving these equations. \n" ); document.write( "

Algebra.Com's Answer #322420 by sofiyac(983) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+graph%28+200%2C+200%2C+-100%2C+300%2C+-100%2C+300%2C+0.05x%2B60%2C+0.15x%2B40%29+\"$
\n" ); document.write( "Solution is where they cross
\n" ); document.write( "y=.05x+60 multiply this one by -3 and add to second one
\n" ); document.write( "y=.15x+40
\n" ); document.write( "*********
\n" ); document.write( "-3y=-0.15x-180
\n" ); document.write( "y=.15x+40 add them
\n" ); document.write( "****************
\n" ); document.write( "-2y=-140 divide each side by -2
\n" ); document.write( "y=70 now plug this into one of the original equations
\n" ); document.write( "70=.05x+60
\n" ); document.write( "10=.05x divide each side by .05
\n" ); document.write( "200=x
\n" ); document.write( "so the solution is (200,70)\r
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