document.write( "Question 634643: solve the following system of equations
\n" ); document.write( "X – 3z = -5
\n" ); document.write( "2x- y + 2z= 16
\n" ); document.write( "7x – 3y -5z =19\r
\n" ); document.write( "\n" ); document.write( "can you walk me thru the steps please \n" ); document.write( "

Algebra.Com's Answer #399800 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( " x- 3z = -5    | x = 3z- 5
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document.write( "Have a relationship between x and z, so...eliminating y from the other two EQs
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document.write( "2x- y + 2z= 16      |mulitplying 1st by 3 and subtracting it form the 2nd EQ
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document.write( "7x – 3y -5z =19
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document.write( "   x  - 11z =  -29 
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document.write( " (3z- 5 - 11z = -29
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document.write( "         -8z = -24
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document.write( "           z = 3  and x = 4  and y =  \n" );
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