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 #579438 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
2x -3y = -2
\n" ); document.write( "5x = 2y -9
\n" ); document.write( "******
\n" ); document.write( "rewrite the second equations as
\n" ); document.write( "5x -2y = -9
\n" ); document.write( "now multiply the new second equation by -1
\n" ); document.write( "-5x +2y = 9
\n" ); document.write( "now add this new equation to the first equation
\n" ); document.write( "-3x -y = 7
\n" ); document.write( "add 3x to both sides of =
\n" ); document.write( "-y = 3x + 7
\n" ); document.write( "multiply both sides of = by -1
\n" ); document.write( "y = -3x -7
\n" ); document.write( "now substitute for y in first equation
\n" ); document.write( "2x -3(-3x-7) = -2
\n" ); document.write( "2x +9x +21 = -2
\n" ); document.write( "11x = -23
\n" ); document.write( "x = −2.09090909
\n" ); document.write( "using first equation substitute for x and solve for y
\n" ); document.write( "(2*−2.09090909) -3y = -2
\n" ); document.write( "−4.18181818 -3y = -2
\n" ); document.write( "-3y = 2.18181818
\n" ); document.write( "y = -0.727272727
\n" ); document.write( "therefore our solution is x = −2.09090909 and y = 0.727272727
\n" ); document.write( "*********
\n" ); document.write( "check our solution by substituting for x and y in second equation
\n" ); document.write( "(5*−2.09090909) = (2*-0.727272727) -9
\n" ); document.write( "−10.45454545 = −10.454545454
\n" ); document.write( "our answer checks\r
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