document.write( "Question 270459: How do you solve:\r
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document.write( "2x + 5y + 13 =0
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document.write( "2x + 5 =3y \r
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document.write( "Use the elimination method to solve the system\r
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document.write( "Thank you! \n" );
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Algebra.Com's Answer #198152 by persian52(161) You can put this solution on YOUR website! In detail steps i will show you how to solve the equation in elimination method! \n" ); document.write( "--------------------------------------------------------------------------------- \n" ); document.write( "2x+5y+13=0_2x+5=3y\r \n" ); document.write( "\n" ); document.write( "Move all terms containing variables to the left-hand side of the equation. \n" ); document.write( "2x+5y+13=0_2x+5-3y=0\r \n" ); document.write( "\n" ); document.write( "Move all terms containing variables to the left-hand side of the equation. \n" ); document.write( "2x+5y+13=0_2x-3y+5=0\r \n" ); document.write( "\n" ); document.write( "Move all terms not containing a variable to the right-hand side of the equation. \n" ); document.write( "2x+5y=-13_2x-3y+5=0\r \n" ); document.write( "\n" ); document.write( "Move all terms not containing a variable to the right-hand side of the equation. \n" ); document.write( "2x+5y=-13_2x-3y=-5\r \n" ); document.write( "\n" ); document.write( "Multiply the first equation by -1 to make the coefficients of x have opposite signs. \n" ); document.write( "-(2x+5y)=-(-13)_2x-3y=-5\r \n" ); document.write( "\n" ); document.write( "Multiply -1 by the -13 inside the parentheses. \n" ); document.write( "-(2x+5y)=13_2x-3y=-5\r \n" ); document.write( "\n" ); document.write( "Multiply -1 by each term inside the parentheses. \n" ); document.write( "(-2x-5y)=13_2x-3y=-5\r \n" ); document.write( "\n" ); document.write( "Remove the parentheses around the expression -2x-5y. \n" ); document.write( "-2x-5y=13_2x-3y=-5\r \n" ); document.write( "\n" ); document.write( "Add the two equations together to eliminate x from the system. \n" ); document.write( " 2x-3y=-5_-2x-5y=13_ -8y= 8\r \n" ); document.write( "\n" ); document.write( "Divide each term in the equation by -8. \n" ); document.write( "y=-1\r \n" ); document.write( "\n" ); document.write( "Substitute the value found for y into the original equation to solve for x. \n" ); document.write( "-2x-5(-1)=13\r \n" ); document.write( "\n" ); document.write( "Multiply -5 by each term inside the parentheses. \n" ); document.write( "-2x+5=13\r \n" ); document.write( "\n" ); document.write( "Move all terms not containing x to the right-hand side of the equation. \n" ); document.write( "-2x=8\r \n" ); document.write( "\n" ); document.write( "Divide each term in the equation by -2. \n" ); document.write( "x=-4\r \n" ); document.write( "\n" ); document.write( "This is the final solution to the independent system of equations. \n" ); document.write( "Solution: y=-1 \n" ); document.write( " x=-4 \n" ); document.write( " |