document.write( "Question 60195: Can someone help me solve this problem?\r
\n" ); document.write( "\n" ); document.write( " I need to solve the system by addition:\r
\n" ); document.write( "\n" ); document.write( " 5x - 3y = 13
\n" ); document.write( " 4x - 3y = 11\r
\n" ); document.write( "\n" ); document.write( " Thank you,
\n" ); document.write( " Sher \n" ); document.write( "
Algebra.Com's Answer #41322 by funmath(2933)\"\" \"About 
You can put this solution on YOUR website!
Hi Sher,\r
\n" ); document.write( "\n" ); document.write( " Solve the system by addition:\r
\n" ); document.write( "\n" ); document.write( "E1: 5x - 3y = 13
\n" ); document.write( "E2: 4x - 3y = 11
\n" ); document.write( ":
\n" ); document.write( " Multiply E2 by -1 and add E1+E2 and the y's will be eliminated so that you can solve for x.
\n" ); document.write( ":
\n" ); document.write( "E2: -1(4x-3y)=-1(11)----> -4x+3y=-11
\n" ); document.write( ":
\n" ); document.write( "5x-3y=13
\n" ); document.write( "-4x+3y=-11
\n" ); document.write( "__________
\n" ); document.write( "x+0=2
\n" ); document.write( "x=2
\n" ); document.write( "Substitute x=2 into either equation and solve for y.
\n" ); document.write( "5(2)-3y=13
\n" ); document.write( "10-3y=13
\n" ); document.write( "-10+10-3y=-10+13
\n" ); document.write( "-3y=3
\n" ); document.write( "-3y/-3=3/-3
\n" ); document.write( "y=-1
\n" ); document.write( "The solution is: (x,y)=(2,-1)
\n" ); document.write( "Happy Calculating, Sher!!!
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