Find the Solution to the System of Equations by Substitution $$\begin{array} { l } x + 2 y + 5 z = 10 \\5 y + 4 z = 19 \\z = 1\end{array}$$

question 62

Multiple Choice

Find the solution to the system of equations by substitution.
- $$\begin{array} { l } x + 2 y + 5 z = 10 \\5 y + 4 z = 19 \\z = 1\end{array}$$

• A)(-1, 3, 1)
• B)(1, 3, -1)
• C)(3, -1, 1)
• D)(-1, 1, 3)

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