document.write( "Question 765722: solve the system below of linear equations. Verify your solution.
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document.write( "4x + 3y = 13
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document.write( "5x + y -8 = 0\r
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document.write( "Solve for X and Y. \n" );
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Algebra.Com's Answer #466714 by suruman(21)![]() ![]() You can put this solution on YOUR website! 4x + 3y = 13 ....(a) \n" ); document.write( "5x + y - 8 = 0 ....(b) \n" ); document.write( "Multiplying (b) by -3, \n" ); document.write( "-15x -3y +24 = 0 ...(c) \n" ); document.write( "Adding (a) with (c), \n" ); document.write( "-11x +24 = 13 \n" ); document.write( "11x = 11 \n" ); document.write( "x = 1 \n" ); document.write( "Substituting value of x in (a), \n" ); document.write( "4 + 3y = 13 \n" ); document.write( "3y = 9 \n" ); document.write( "y = 3 \n" ); document.write( "Thus the solution is (1,3). \n" ); document.write( "Substituting the above values of x and y in equation (a), \n" ); document.write( "4*1 + 3*3 = 4 + 9 = 13 \n" ); document.write( "Substituting the above values of x and y in equation (b), \n" ); document.write( "5*1 + 3 -8 = 5 + 3 - 8 = 8 - 8 =0 \n" ); document.write( "Thus, (1,3) is the solution pair for the given set of equations.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |