document.write( "Question 60487: Instructions: Solve each system by the substitution method.\r
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document.write( "What is the solution for 5x+2y=-1
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document.write( " 2x-y=-13 \n" );
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Algebra.Com's Answer #41565 by kayeith(17)![]() ![]() ![]() You can put this solution on YOUR website! 5x + 2y = -1 \n" ); document.write( "2x - y = -13\r \n" ); document.write( "\n" ); document.write( "a) - y = - 2x - 13 \n" ); document.write( " -1 (-y = - 2x - 13) \n" ); document.write( " y = 2x + 13\r \n" ); document.write( "\n" ); document.write( "b) 5x + 2 (2x + 13) = -1 \n" ); document.write( " 5x + 4x + 26 = -1 \n" ); document.write( " 9x = -1 - 26 \n" ); document.write( " 9x = -27 \n" ); document.write( " x = -27 / 9 \n" ); document.write( " x = -3\r \n" ); document.write( "\n" ); document.write( "c) y = 2x + 13 \n" ); document.write( " y = 2 (-3) + 13 \n" ); document.write( " y = -6 + 13 \n" ); document.write( " y = 7 \n" ); document.write( " |