document.write( "Question 604985: (1) Solve the system of equation by graphing:
\n" ); document.write( " x+y=4
\n" ); document.write( " y-x=4\r
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\n" ); document.write( "\n" ); document.write( "(2)x-3y=-3
\n" ); document.write( " x+3y=9\r
\n" ); document.write( "\n" ); document.write( "(3) Solve by substitution method
\n" ); document.write( " 7x+3y=-15
\n" ); document.write( " x=7-5y
\n" ); document.write( "

Algebra.Com's Answer #381517 by lynnlo(4176)\"\" \"About 
You can put this solution on YOUR website!
graphing---check to see if i wrote your problem down right
\n" ); document.write( " x+y=4
\n" ); document.write( " y-x=4 answer: y=4-x
\n" ); document.write( " y=x+4\r
\n" ); document.write( "\n" ); document.write( " x-3y=3 y=x/3-1\r
\n" ); document.write( "\n" ); document.write( " x+3y=9 y=3-x/3\r
\n" ); document.write( "\n" ); document.write( "solve substitution\" 7x+3y=15
\n" ); document.write( " x=7-5y answer:y=17/16
\n" ); document.write( " x=27/16
\n" ); document.write( "
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