document.write( "Question 160294: x+2y=7 2x+2y=13 \n" ); document.write( "
Algebra.Com's Answer #118274 by checkley77(12844)\"\" \"About 
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x+2y=7
\n" ); document.write( "2x+2y=13 NOW SUBTRACT
\n" ); document.write( "----------------------------
\n" ); document.write( "-X=-6
\n" ); document.write( "X=6 ANSWER.
\n" ); document.write( "6+2Y=7
\n" ); document.write( "2Y=7-6
\n" ); document.write( "2Y=1
\n" ); document.write( "Y=1/2 ANSWER.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*6+2*1/2=13
\n" ); document.write( "12+1=13
\n" ); document.write( "13=13 \n" ); document.write( "
\n" );