document.write( "Question 854676: Solve the following pairs of simultaneous equations.
\n" ); document.write( "3x + 4y = -3
\n" ); document.write( "x + y = 1 \n" ); document.write( "

Algebra.Com's Answer #514819 by mananth(16946) $\"\"$ $\"About$

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3 x + 4 y = -3 .............1
\n" ); document.write( "Total value
\n" ); document.write( "1 x + 1 y = 1 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by -4
\n" ); document.write( "3 x 4 y = -3
\n" ); document.write( "-4 x -4 y = -4
\n" ); document.write( "Add the two equations
\n" ); document.write( "-1 x = -7
\n" ); document.write( "/ -1
\n" ); document.write( "x = 7
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "3 x + 4 y = -3
\n" ); document.write( "21 + 4 y = -3
\n" ); document.write( " 4 y = -3 -21
\n" ); document.write( " 4 y = -24
\n" ); document.write( " y = -6 \r
\n" ); document.write( "\n" ); document.write( "x=7,y=-6 \n" ); document.write( "

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