document.write( "Question 163312: Solve by the elimination method.
\n" ); document.write( "0.3x - 0.2y = 4
\n" ); document.write( "0.5x + 0.3y = 1
\n" ); document.write( "What is the solution of the system?
\n" ); document.write( "(Type and ordered pair.)
\n" ); document.write( "(Type an integer or a fraction. Type N if there is no solution. Type I if there are infinitely many solutions.) \n" ); document.write( "
Algebra.Com's Answer #120363 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
0.3x - 0.2y = 4 multiply by 3.
\n" ); document.write( "0.5x + 0.3y = 1 muyltiply by 2 & then add them.
\n" ); document.write( ".9x-.6y=12
\n" ); document.write( "1x+.6y=2
\n" ); document.write( "-----------------------------
\n" ); document.write( "1.9x=14
\n" ); document.write( "x=14/1.9
\n" ); document.write( "x=7.368 Answer.
\n" ); document.write( ".3*7.368-.2y=4
\n" ); document.write( "2.21-.2y=4
\n" ); document.write( "-.2y=4-2.21
\n" ); document.write( "-.2y=1.79
\n" ); document.write( "y=1.79/-.2
\n" ); document.write( "y=-8.95 Answer.
\n" ); document.write( "Proof:
\n" ); document.write( ".5*7.368+.3*-8.95=1
\n" ); document.write( "3.685-2.685=1
\n" ); document.write( "1=1\r
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