document.write( "Question 552831: I have homework for Algebra. I tried everything I know how to do. Can you help by showing me how to do it? The problem is -.3x+y=.5 , .5x-.3y=1.9 I know the answer because it was given to me by the yeacher. I just have to show how to do it. Please help!!!!! \n" ); document.write( "

Algebra.Com's Answer #360525 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
-.3x+y=.5
\n" ); document.write( ".5x-.3y=1.9
\n" ); document.write( "---------------
\n" ); document.write( "Multiply thru each equation by 10 to get:
\n" ); document.write( "-3x + 10y = 5
\n" ); document.write( "5x - 3y = 19
\n" ); document.write( "-----
\n" ); document.write( "Multiply thru the top equation by 5
\n" ); document.write( "Multiply thru the bottom equation by 3
\n" ); document.write( "-----
\n" ); document.write( "-15x + 50y = 25
\n" ); document.write( "15x - 9y = 57
\n" ); document.write( "-------------------
\n" ); document.write( "Add and solve for \"y\":
\n" ); document.write( "41y = 82
\n" ); document.write( "y = 2
\n" ); document.write( "----
\n" ); document.write( "Solve for \"x\":
\n" ); document.write( "15x - 9y = 57
\n" ); document.write( "15x - 18 = 57
\n" ); document.write( "15x = 75
\n" ); document.write( "x = 5
\n" ); document.write( "==================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "==================== \n" ); document.write( "

\n" );