document.write( "Question 184958: Find the solution to the system by the addition method.\r
\n" ); document.write( "\n" ); document.write( "20x-6y=-4 (1)\r
\n" ); document.write( "\n" ); document.write( "5x+2y=6 (2)
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Algebra.Com's Answer #138794 by eperette(173)\"\" \"About 
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20x - 6y = -4
\n" ); document.write( "5x + 2y = 6
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\n" ); document.write( "20x - 6y = -4
\n" ); document.write( "3(5x + 2y = 6)
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\n" ); document.write( "20x - 6y = -4
\n" ); document.write( "15x + 6y = 18
\n" ); document.write( "add them now
\n" ); document.write( "35x + 0y = 14
\n" ); document.write( "35x/35 = 14/35
\n" ); document.write( "x = 14/35
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\n" ); document.write( "go back and find y
\n" ); document.write( "5x + 2y = 6
\n" ); document.write( "5(14/35) + 2y = 6
\n" ); document.write( "2 - 2 + 2y = 6 - 2
\n" ); document.write( "0 + 2y = 4
\n" ); document.write( "2y/2 = 4/2
\n" ); document.write( "y = 2
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\n" ); document.write( "answer (14/35, 2)
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\n" ); document.write( "check answer:\r
\n" ); document.write( "\n" ); document.write( "(1)20x-6y=-4
\n" ); document.write( "20(14/35) - 6(2)
\n" ); document.write( "8 - 12
\n" ); document.write( "-4 correct
\n" ); document.write( "(2)5x+2y=6
\n" ); document.write( "5(14/35) + 2(2)
\n" ); document.write( "2 + 4
\n" ); document.write( "6 correct\r
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