Mister Exam

-2y<=16 inequation

A inequation with variable

The solution

You have entered [src]
-2*y <= 16
$$- 2 y \leq 16$$
-2*y <= 16
Detail solution
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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Rapid solution 2 [src]
[-8, oo)
$$x\ in\ \left[-8, \infty\right)$$
x in Interval(-8, oo)
Rapid solution [src]
And(-8 <= y, y < oo)
$$-8 \leq y \wedge y < \infty$$
(-8 <= y)∧(y < oo)