Question
Solve system of equations using Elimination method $$\begin{array}{ cccc }~~ x&&&~=~0\\&&0&~=~0\\&&0&~=~0\end{array}$$
Answer
The solutions are:
$$ x = ~,~y = s ~,~z = t $$Explanation
Step 1: Convert all decimals to fractions
$$\begin{array}{ cccc }~~ x&&&~=~0\\&&0&~=~0\\&&0&~=~0\end{array}$$Step 2: All the elements in the last row are zero, so the variable $ z $ can take any value, let
$$ \color{blue}{ z = t } $$Step 3: All the elements in the second row are also zeros, so the variable $ y $ can take any value, let
$$ \color{blue}{ y = s } $$Step 4: Supstitute $ y = s $ and $ z = t $ into first equation to find $ x $:
$$ \color{green}{x} = \color{green}{ }$$This page was created using
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