document.write( "Question 216082: How would you solve this problem? I need step by step on how it was solved please. 0.3x-0.2y=4
\n" ); document.write( " 0.4+ 0.5y= -55over 7\r
\n" ); document.write( "\n" ); document.write( "What is the solution of the system?
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Algebra.Com's Answer #163203 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How would you solve this problem? I need step by step on how it was solved please. 0.3x-0.2y=4
\n" ); document.write( "0.4+ 0.5y= -55over 7
\n" ); document.write( "What is the solution of the system?
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\n" ); document.write( "Get rid of those pesky decimals.
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\n" ); document.write( "3x - 2y = 40
\n" ); document.write( "4x + 5y = 79
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\n" ); document.write( "Multiply the 1st Eq. by 5 ; Multiply the 2nd Eq. by 2
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\n" ); document.write( "15x - 10y = 200
\n" ); document.write( " 8x + 10y = 158
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\n" ); document.write( "23x = 358
\n" ); document.write( "x = 15.56..
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\n" ); document.write( "Subtitute to solve for \"y\":
\n" ); document.write( "3(15.56) - 2y = 40
\n" ); document.write( "-2y = -6.68
\n" ); document.write( "y = 3.34
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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