document.write( "Question 585183: 0.3x-0.2y=4
\n" ); document.write( "0.5x+0.5y=-45/17\r
\n" ); document.write( "\n" ); document.write( "3x-2y=40
\n" ); document.write( "5x+5y=-450/17
\n" ); document.write( "15x-10y=200
\n" ); document.write( "15x-15y=1350/17
\n" ); document.write( "_________________
\n" ); document.write( " -25y= 4750/17 dont know how they got this?
\n" ); document.write( " y=-190/17
\n" ); document.write( "3x-2(-190/17)=40
\n" ); document.write( "100/17
\n" ); document.write( "Solution 100/17,-190/17
\n" ); document.write( "

Algebra.Com's Answer #373192 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
0.3x-0.2y = 4
\n" ); document.write( "0.5x+0.5y = -45/17
\n" ); document.write( "------------------------
\n" ); document.write( "3x-2y= 40
\n" ); document.write( "5x+5y= -450/17
\n" ); document.write( "--------------------
\n" ); document.write( "15x-10y= 200
\n" ); document.write( "15x+15y= -1350/17
\n" ); document.write( "________________
\n" ); document.write( "Add those two equation together to get:
\n" ); document.write( "5y= 2050/17
\n" ); document.write( "---------------------------------
\n" ); document.write( "y = 410/17
\n" ); document.write( "Solve for \"x\":
\n" ); document.write( "-------------------------
\n" ); document.write( "3x-2(410/17)=40
\n" ); document.write( "3x - 820/17 = 680/17
\n" ); document.write( "3x = 1500/17
\n" ); document.write( "x = 500/17
\n" ); document.write( "=====================
\n" ); document.write( "Solution 500/17 , 410/17
\n" ); document.write( "==================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "========================
\n" ); document.write( "
\n" ); document.write( "
\n" );