document.write( "Question 949213: Solve by addition \r
\n" ); document.write( "\n" ); document.write( "2x-3y=-2
\n" ); document.write( " 5x=2y-9\r
\n" ); document.write( "\n" ); document.write( "I did... 5x=2y-9 I triex to make the equation in Ax+By=c form. So I added 2y and I got 5x+2y=-9
\n" ); document.write( "And since 2x-3y=-2 was already in the ax+by=c form I did 5x+2y=-9(-2) and 2x-3y=-2 (5) and I got -10x-4y=18
\n" ); document.write( " 10x-15y=-10
\n" ); document.write( "The -10x and 10x cancel out so I added -4y and -15y and got -19y= 8 I then divided by -19y and got Y= 8/-19 \r
\n" ); document.write( "\n" ); document.write( "PLEASE HELP ME.. I AM STUCK AND PLEASE SHOW HOW TO CHECK MY ANSWERES.
\n" ); document.write( "Thank you
\n" ); document.write( "

Algebra.Com's Answer #579439 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Solve by addition
\n" ); document.write( " 2x-3y=-2
\n" ); document.write( " 5x=2y-9
\n" ); document.write( " I did... 5x=2y-9 I triex to make the equation in Ax+By=c form. So I added 2y and I got 5x+2y=-9
\n" ); document.write( " ****** You should have subtracted 2y --> 5x-2y = -9 ********
\n" ); document.write( " ===============================\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2x -3y = -2
\n" ); document.write( "5x = 2y -9 --> 5x - 2y = -9
\n" ); document.write( "-------------------
\n" ); document.write( "Multiply the 1st eqn by -2 and the 2nd by 3
\n" ); document.write( "-4x + 6y = 4
\n" ); document.write( "15x - 6y = -27
\n" ); document.write( "------------------ Add
\n" ); document.write( "11x = -23
\n" ); document.write( "x = -23/11
\n" ); document.write( "-----
\n" ); document.write( "Sub for x in any eqn to find y
\n" ); document.write( "2x -3y = -2
\n" ); document.write( "-46/11 - 3y = -2
\n" ); document.write( "3y = -46/11 + 2 = -24/11
\n" ); document.write( "y = -8/11
\n" ); document.write( "==============
\n" ); document.write( "2x -3y = -2 --> -46/11 + 24/11 = -22/11 = -2 Checks
\n" ); document.write( "5x = 2y -9 --> -115/11 = -16/11 - 99/11 Checks
\n" ); document.write( "
\n" );