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Solve the following systems of equations: x-y +z =4 ; x-2y -2z =9 ; 2x+y+3z =1

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Solve the following systems of equations:
x-y +z =4
x-2y -2z =9
2x+y+3z =1
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1 Answer

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Subtracting the value of z in equation (ii), we get

Subtracting the value of z in equation (iii), we get

Hence, solution of the giving system of equation is x=3, y=-2 z=-1

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