document.write( "Question 320219: Solve by substitution method\r
\n" ); document.write( "\n" ); document.write( "7x+8y=36
\n" ); document.write( "X=60-8y\r
\n" ); document.write( "\n" ); document.write( "Thank you
\n" ); document.write( "

Algebra.Com's Answer #229333 by rfer(16322)\"\" \"About 
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7(60-8y)+8y=36
\n" ); document.write( "420-56y+8y=36
\n" ); document.write( "-48y=-384
\n" ); document.write( "y=+8
\n" ); document.write( "------------------
\n" ); document.write( "7x+8*8=36
\n" ); document.write( "7x=-28
\n" ); document.write( "x=-4
\n" ); document.write( "--------------
\n" ); document.write( "-4=60-8*8
\n" ); document.write( "
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