document.write( "Question 446375: How do you solve for substitution and elimination? \n" ); document.write( "
Algebra.Com's Answer #307413 by shree840(260) You can put this solution on YOUR website! Substitution x+y=3 x=3-y substitute this value of x interms of y and solve. \n" ); document.write( "eliminiation \n" ); document.write( "x+y=5 \n" ); document.write( "2x-3y=10\r \n" ); document.write( "\n" ); document.write( "we multiply eqn 1 by 2 \n" ); document.write( "2x+2y=10 \n" ); document.write( "2x-3y=10 \n" ); document.write( "--------- \n" ); document.write( "subtract line 2 from line 1 thus eliminating x \n" ); document.write( "2x+2y=10 \n" ); document.write( "-2x+6y=-10 \n" ); document.write( "---------- add both the lines \n" ); document.write( "8y=0 so y=0 in this case ANS \n" ); document.write( " |