document.write( "Question 418481: what is the solution of the system of linear equations.... y=1/2x+8 and 2x+y=18 \n" ); document.write( "
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\"what is the solution of the system of linear equations.... y=1/2x+8 and 2x+y=18\"\r
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\n" ); document.write( "\n" ); document.write( "y = 1/2x + 8
\n" ); document.write( "2x + y = 18\r
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\n" ); document.write( "\n" ); document.write( "2x + y = 18 {second equation}
\n" ); document.write( "2x + 1/2x + 8 = 18 {substituted 1/2x + 8, in for y, into 2nd equation}
\n" ); document.write( "5/2x + 8 = 18 {combined like terms}
\n" ); document.write( "5/2x = 10 {subtracted 8 from both sides}
\n" ); document.write( "x = 4 {divided both sides by 5/2...multiplied by reciprocal, 2/5}\r
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\n" ); document.write( "\n" ); document.write( "y = 1/2x + 8 {top equation}
\n" ); document.write( "y = 1/2(4) + 8 {substituted 4, in for x, into y = 1/2x + 8}
\n" ); document.write( "y = 2 + 8 {multiplied 1/2 by 4}
\n" ); document.write( "y = 10 {combined like terms}\r
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\n" ); document.write( "\n" ); document.write( "x = 4 and y = 10
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