document.write( "Question 660421: y=x+3 y=2x-1 \n" ); document.write( "
Algebra.Com's Answer #411183 by ReadingBoosters(3246)\"\" \"About 
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y=x+3
\n" ); document.write( "y=2x-1\r
\n" ); document.write( "\n" ); document.write( "Subtract the first equation form the second
\n" ); document.write( "y - y = 2x - x - 1 - 3
\n" ); document.write( "Combine like terms
\n" ); document.write( "0 = x - 4
\n" ); document.write( "x = 4\r
\n" ); document.write( "\n" ); document.write( "y = x + 3 = 4 + 3 = 7\r
\n" ); document.write( "\n" ); document.write( "Proof
\n" ); document.write( "2(4)-1 = 7
\n" ); document.write( "
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