document.write( "Question 665403: What is the solution to this system of linear equations using the substitution method?
\n" );
document.write( "1/2x-1/5y=6
\n" );
document.write( "1/6+2/5y=9 \n" );
document.write( "
Algebra.Com's Answer #413844 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "What is the solution to this system of linear equations using the substitution method? \n" ); document.write( "1/2x-1/5y=6 \n" ); document.write( "1/6+2/5y=9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "5x - 2y = 60 ----- Multiplying eq (i) by LCD, 10 ----- eq (iii) \n" ); document.write( "5x + 12y = 270 ---- Multiplying eq (ii) by LCD, 30 ----- eq (iv) \n" ); document.write( "- 14y = - 210 ------ Subtracting eq (iv) from eq (iii)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5x - 2(15) = 60 ------ Substituting 15 for y in eq (iii) \n" ); document.write( "5x - 30 = 60 \n" ); document.write( "5x = 90\r \n" ); document.write( "\n" ); document.write( "x = \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You should be able to do the check, in the original equations, i.e. eqs (i) & (ii)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com \n" ); document.write( " |