document.write( "Question 720248: solve system of equation using substitution
\n" ); document.write( "3x-y=-10
\n" ); document.write( "x=2y-10
\n" ); document.write( " my attempt
\n" ); document.write( "we already now what x is
\n" ); document.write( "now substitute to solve for y
\n" ); document.write( "3(2y-10)=-10
\n" ); document.write( "6y-30=-10
\n" ); document.write( " +30 +30 6y=20 divide by 6 y =3.3333 i dont think this is right and I dont now what to do next
\n" ); document.write( "thanks \n" ); document.write( "

Algebra.Com's Answer #441726 by lynnlo(4176) $\"\"$ $\"About$

You can put this solution on YOUR website!
you are on the right track,your answers are y=4,,,,,,,x=-2 \n" ); document.write( "

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