document.write( "Question 632917: Solve the following system of equations by using the inverse of the coefficent Matrix (AX=B) x+3y=-9 5x+8y=-31 i also need the ordered pair solution \n" ); document.write( "

Algebra.Com's Answer #398549 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( "Note: Post each question separately, not necessary to use pictures,
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document.write( "just list Eqs with the following instructions:
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document.write( "Solve the system of equations by using the inverse of the coefficient matrix.
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document.write( " x+3y = -9 
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document.write( "5x+8y = -31                             
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document.write( " = -7  
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document.write( "  Note: How the above numbers flipped and the 2 minuses
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document.write( " = (1/-7)\r
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document.write( "and...
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document.write( "Ordered pair (-3,-2) the solution for this system of equations
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document.write( "Checking our answer using the Elimination Method:
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document.write( "x+3y= -9 
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document.write( "5x+8y= -31  |multiplying 1st EQ by 5 and Subtracting  from the 2nd EQ
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document.write( " -7y = 14
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document.write( "  y = -2   and x = -3  as 
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document.write( "(x,y) Ordered pair (-3,-2) the solution for this system of equations \n" );
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