document.write( "Question 540508: 4m+9z=7
\n" ); document.write( " 2m+3=2z \n" ); document.write( "

Algebra.Com's Answer #353735 by mananth(16946) $\"\"$ $\"About$

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4 m + 9 z = 7 .............1
\n" ); document.write( "2 m -2 z = 3 .............2
\n" ); document.write( "Eliminate z
\n" ); document.write( "multiply (1)by 2
\n" ); document.write( "Multiply (2) by 9
\n" ); document.write( "8 m 18 z = 14
\n" ); document.write( "18 m + -18 z = 27
\n" ); document.write( "Add the two equations
\n" ); document.write( "26 m = 41
\n" ); document.write( "/ 26
\n" ); document.write( "m = 1.58
\n" ); document.write( "plug value of m in (1)
\n" ); document.write( "4 m + 9 z = 7
\n" ); document.write( "6.31 + 9 z = 7
\n" ); document.write( " 9 z = 7 -6.31
\n" ); document.write( " 9 z = 0.69
\n" ); document.write( " z = 0.08
\n" ); document.write( " \n" ); document.write( "

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