document.write( "Question 327338: 5x+2y=-7 7x-3y=13 \n" ); document.write( "

Algebra.Com's Answer #234478 by mananth(16946) $\"\"$ $\"About$

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5x+2y=-7..............1
\n" ); document.write( "7x-3y=13..............2
\n" ); document.write( "..
\n" ); document.write( "multiply equation 1 by 3 & equation 2 by 2 and add the equations
\n" ); document.write( "3(5x+2y)+2((7x-3y)=-21+26
\n" ); document.write( "15x+6y+14x-6y=5
\n" ); document.write( "29x=5
\n" ); document.write( "divide by 29
\n" ); document.write( "29x/29=5/29
\n" ); document.write( "x= 5/29
\n" ); document.write( "..
\n" ); document.write( "plug the value of x in equation 1
\n" ); document.write( "5*5/29+2y=-7
\n" ); document.write( "25/29+2y=-7
\n" ); document.write( "2y=-7-25/29
\n" ); document.write( "2y=-203-25/29
\n" ); document.write( "2y=-228/87
\n" ); document.write( "y= -114/87 \n" ); document.write( "

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