document.write( "Question 57742: Ver confused with this one Solve sytem of linear equation express in ordered pai (x,y) if possible use substitution or addition method\r
\n" ); document.write( "\n" ); document.write( "x- 5/3y=7
\n" ); document.write( "4/7x + y=-13/7\r
\n" ); document.write( "\n" ); document.write( "thanks, please show me steps\r
\n" ); document.write( "\n" ); document.write( "dnn \n" ); document.write( "
Algebra.Com's Answer #39424 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Solve sytem of linear equation express in ordered pai (x,y) if possible use substitution or addition method
\n" ); document.write( "1st: x- 5/3y=7
\n" ); document.write( "2nd: 4/7x + y=-13/7
\n" ); document.write( "Rewrite each without the fractions:
\n" ); document.write( "3rd: 3x-5y=21
\n" ); document.write( "4th: 4x+7y=-13
\n" ); document.write( "Multiply 3rd by 4 and 4th by 3 to get:
\n" ); document.write( "5th: 12x-20y=84
\n" ); document.write( "6th: 12x+21y=-39
\n" ); document.write( "Subtract 5th from 6th to get:
\n" ); document.write( "41y=--123
\n" ); document.write( "y=-3
\n" ); document.write( "Substitute into 3rd to solve for x, as follows:
\n" ); document.write( "3x-5*-3=21
\n" ); document.write( "3x=6
\n" ); document.write( "x=2
\n" ); document.write( "Solution:
\n" ); document.write( "x=2; y=-3
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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