Question
Solve each system of equations. If the system has no solution, say that it is inconsistent. For Problems 19-30, graph the lines of the system.$$\left\{\begin{array}{r}x+2 y-z=-3 \\2 x-4 y+z=-7 \\-2 x+2 y-3 z=4\end{array}\right.$$
Step 1
Step 1: Write down the system of equations: \[ \begin{array}{r} x + 2y - z = -3 \\ 2x - 4y + z = -7 \\ -2x + 2y - 3z = 4 \end{array} \] Show more…
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In Problems $19-56,$ solve each system of equations. If the system has no solution, say that it is inconsistent. For Problems $19-30,$ graph the lines of the system. $$ \left\{\begin{array}{r} {x+2 y-z=-3} \\ {2 x-4 y+z=-7} \\ {-2 x+2 y-3 z=4} \end{array}\right. $$
Systems of Equations and Inequalities
Systems of Linear Equations: Substitution and Elimination
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