document.write( "Question 150290: Show all your work \r
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document.write( "Solve the system of equations using the Addition method. \r
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document.write( "2a + 3b = -1
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document.write( "3a + 5b = -2
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Algebra.Com's Answer #110349 by mangopeeler07(462)![]() ![]() ![]() You can put this solution on YOUR website! 2a + 3b = -1 \n" ); document.write( "3a + 5b = -2 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply the first equation by -3/2 \n" ); document.write( "-3a+-9b/2=-1 \n" ); document.write( "3a+5b=-2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add them \n" ); document.write( "1/2b=-3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply by 2 \n" ); document.write( "b=-6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Plug that in \n" ); document.write( "3a+5(-6)=-2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3a-30=-2 \n" ); document.write( "3a=28 \n" ); document.write( "a=9 and 1/3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a=28/3 \n" ); document.write( "b=-6 \n" ); document.write( " |