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OpenStudy (anonymous):
Solve the following system of equations: x + 3y - z = 2 x - 2y + 3z = 7 x + 2y - 5z = -21
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OpenStudy (anonymous):
Need help 😥
rishavraj (rishavraj):
subtract eqn 1 and eqn 2 .... "x" gets eliminated and u get equation in "y" and "z" again subtract eq 1 and eq 3 ..."x" gets eliminated and u get equation in "y" and "z" so u will be havng 2 equations in "y" and "z" ....solve the equations
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