document.write( "Question 144372:
Solve this system of equations\r\n" );
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document.write( "18x -  7y = 121\r\n" );
document.write( " 6x - 14y = 122

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Algebra.Com's Answer #105110 by Alan3354(69443)\"\" \"About 
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18x-7y=121
\n" ); document.write( "6x-14y=122
\n" ); document.write( "Eliminate one variable. To do this multiply or divide one equation to make the coefficients of one of the variables the same as in the other eqn. Divide ean 2 by 2.\r
\n" ); document.write( "\n" ); document.write( "18x-7y=121
\n" ); document.write( "3x-7y=61\r
\n" ); document.write( "\n" ); document.write( "Subtract eqn 2 from eqn 1.\r
\n" ); document.write( "\n" ); document.write( "18x-7y=121
\n" ); document.write( "3x -7y=61\r
\n" ); document.write( "\n" ); document.write( "15x =60
\n" ); document.write( "x = 4\r
\n" ); document.write( "\n" ); document.write( "Substitute x in any eqn, and get y = -7
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