document.write( "Question 712388: Solve by the substitution method.\r
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document.write( "9x+5y=-1
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document.write( "x=52-8y \n" );
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Algebra.Com's Answer #437893 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Hint:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9x+5y=-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9(52-8y)+5y=-1 ... replace 'x' with 52-8y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "468-72y+5y=-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "468-67y=-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I'll let you finish. What you do is first solve this equation for y. Then you use this solution for y to get the solution for x. \n" ); document.write( " |