document.write( "Question 31090: Question: if 2x-4y=-2 and 3x-2y=3, then 2y+x= \r
\n" ); document.write( "\n" ); document.write( "I need help solvng one equation in terms of the other to answer this question. \r
\n" ); document.write( "\n" ); document.write( "thanks
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Algebra.Com's Answer #17813 by Cintchr(481) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+2x-4y=-2+\"$ and $\"+3x-2y=3+\"$ then $\"+2y%2Bx=z+\"$
\n" ); document.write( "Using the first equation ... solve for x
\n" ); document.write( " $\"+2x-4y=-2+\"$
\n" ); document.write( " $\"+2x=4y-2+\"$ divide all parts by 2
\n" ); document.write( " $\"+x=2y-1+\"$ substitute this value into the 2nd equation
\n" ); document.write( " $\"+3x-2y=3+\"$
\n" ); document.write( " $\"+3%282y-1%29-2y=3+\"$ solve for y
\n" ); document.write( " $\"+6y-3-2y=3+\"$
\n" ); document.write( " $\"+4y-3=3+\"$
\n" ); document.write( " $\"+4y=6\"$
\n" ); document.write( " $\"+y=6%2F4+\"$ or $\"+y=3%2F2+\"$ substitute this back into the first eq.
\n" ); document.write( " $\"+x=2y-1+\"$
\n" ); document.write( " $\"+x=2%283%2F2%29-1+\"$ solve for x
\n" ); document.write( " $\"+x=3-1+\"$
\n" ); document.write( " $\"+x=2+\"$ substitute x and y into the third equation
\n" ); document.write( " $\"+2y%2Bx=z+\"$ and $\"+x=2+\"$ and $\"+y=3%2F2+\"$
\n" ); document.write( " $\"+2%283%2F2%29+%2B+2+=z+\"$
\n" ); document.write( " $\"+3+%2B+2+=z+\"$
\n" ); document.write( " $\"+5+=+z+\"$ \n" ); document.write( "

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