Solve the System of Equations by Using an Inverse Matrix $$\begin{aligned}- 5 x - y + 2 z & = - 29 \\8 x + 8 y + 2 z & = 90 \\- 7 x - 6 y + z & = - 70\end{aligned}$$

question 100

Multiple Choice

Solve the system of equations by using an inverse matrix.
- $$\begin{aligned}- 5 x - y + 2 z & = - 29 \\8 x + 8 y + 2 z & = 90 \\- 7 x - 6 y + z & = - 70\end{aligned}$$

• A) \(( 5,6,1 )\)
• B) \(\varnothing\)
• C) \(( 5,1,6 )\)
• D) \(( - 5,6,10 )\)

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