document.write( "Question 122905This question is from textbook practice workbook
\n" ); document.write( ": The directions says solve the problems using subsitution. I need help solving \r
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\n" ); document.write( "\n" ); document.write( "y=x+4 y=3x.
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Algebra.Com's Answer #90209 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
IF Y=X+4 & Y=3X THEN:
\n" ); document.write( "X+4=3X
\n" ); document.write( "X-3X=-4
\n" ); document.write( "-2X=-4
\n" ); document.write( "X=-4/-2
\n" ); document.write( "X=2 ANSWER.
\n" ); document.write( "PROOF.
\n" ); document.write( "Y=2+4
\n" ); document.write( "Y=6
\n" ); document.write( "6=3*2
\n" ); document.write( "6=6
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