document.write( "Question 183128: 0.17x - 0.35y = 7
\n" ); document.write( "5x + 7y = 76 answer in decimal form and explain the steps to me please \n" ); document.write( "

Algebra.Com's Answer #137524 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
I'll get it out of decimal form and then put it
\n" ); document.write( "back to decimal form at end
\n" ); document.write( "(1) $\".17x+-+.35y+=+7\"$
\n" ); document.write( "(2) $\"5x+%2B+7y+=+76\"$
\n" ); document.write( "--------------------------
\n" ); document.write( "Multiply both sides of (1) by $\"100\"$
\n" ); document.write( "(1) $\"17x+-+35y+=+700\"$
\n" ); document.write( "(2) $\"5x+%2B+7y+=+76\"$
\n" ); document.write( "Now multiply both sides of (2) by $\"5\"$
\n" ); document.write( "(1) $\"17x+-+35y+=+700\"$
\n" ); document.write( "(2) $\"25x+%2B+35y+=+380\"$
\n" ); document.write( "Now add (2) and (1)
\n" ); document.write( "(1) $\"17x+-+35y+=+700\"$
\n" ); document.write( "(2) $\"25x+%2B+35y+=+380\"$
\n" ); document.write( " $\"42x+=+1080\"$
\n" ); document.write( " $\"x+=+25.714\"$
\n" ); document.write( "Substitute this result back ito (2)
\n" ); document.write( "(2) $\"5x+%2B+7y+=+76\"$
\n" ); document.write( " $\"5%2A25.714+%2B+7y+=+76\"$
\n" ); document.write( " $\"7y+=+76+-+128.570\"$
\n" ); document.write( " $\"7y+=+-52.570\"$
\n" ); document.write( " $\"y+=+-7.510\"$
\n" ); document.write( "Check answers:
\n" ); document.write( "(1) $\".17x+-+.35y+=+7\"$
\n" ); document.write( "(2) $\"5x+%2B+7y+=+76\"$
\n" ); document.write( "-------------------------
\n" ); document.write( "(1) $\".17%2A25.714+-+.35%2A%28-7.51%29+=+7\"$
\n" ); document.write( "(1) $\"4.371+%2B+2.629+=+7\"$
\n" ); document.write( "(1) $\"6.9995+=+7\"$ close enough
\n" ); document.write( "(2) $\"5x+%2B+7y+=+76\"$
\n" ); document.write( "(2) $\"5%2A25.714+%2B+7%2A%28-7.51%29+=+76\"$
\n" ); document.write( "(2) $\"128.57+-+52.57+=+76\"$
\n" ); document.write( "(2) $\"76+=+76\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );