Given the inequality:
$$- 2 y \leq 16$$
To solve this inequality, we must first solve the corresponding equation:
$$- 2 y = 16$$
Solve:
$$x_{1} = -8$$
$$x_{1} = -8$$
This roots
$$x_{1} = -8$$
is the points with change the sign of the inequality expression.
First define with the sign to the leftmost point:
$$x_{0} \leq x_{1}$$
For example, let's take the point
$$x_{0} = x_{1} - \frac{1}{10}$$
=
$$-8 + - \frac{1}{10}$$
=
$$-8.1$$
substitute to the expression
$$- 2 y \leq 16$$
$$- 2 y \leq 16$$
-2*y <= 16
Then
$$x \leq -8$$
no execute
the solution of our inequality is:
$$x \geq -8$$
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