document.write( "Question 41609: it tell you to use the substitution method to solve the linear system\r
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document.write( "x +2y = - 5
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document.write( "4x-3y=2\r
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document.write( "3x-2y=4
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document.write( "x+3y=5\r
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document.write( "3x+y= -2
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document.write( "x+3y=2 \n" );
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Algebra.Com's Answer #26895 by K N Swamy(1)![]() ![]() ![]() You can put this solution on YOUR website! q1. \n" ); document.write( "x+2y=-5----(1) \n" ); document.write( "4x-3y=2---(2) \n" ); document.write( "from (1), X=-2Y-5 \n" ); document.write( "substitute x=-2y-5 in (2) \n" ); document.write( "4(-2y-5)-3y=2 \n" ); document.write( "-8y-20-3y=2 \n" ); document.write( "-11y-20=2 \n" ); document.write( "-11y=-22 \n" ); document.write( "y=-22/-11 \n" ); document.write( "y=2 \n" ); document.write( "x=-2y-5 \n" ); document.write( "substitute y=2 \n" ); document.write( "x=-2(2)-5 \n" ); document.write( "x=-4-5 \n" ); document.write( "x=-9 \n" ); document.write( "Hence x=-9 and y=2 \n" ); document.write( " |