Given the inequality:
$$- 4 t < 13$$
To solve this inequality, we must first solve the corresponding equation:
$$- 4 t = 13$$
Solve:
$$x_{1} = -3.25$$
$$x_{1} = -3.25$$
This roots
$$x_{1} = -3.25$$
is the points with change the sign of the inequality expression.
First define with the sign to the leftmost point:
$$x_{0} < x_{1}$$
For example, let's take the point
$$x_{0} = x_{1} - \frac{1}{10}$$
=
$$-3.25 + - \frac{1}{10}$$
=
$$-3.35$$
substitute to the expression
$$- 4 t < 13$$
$$- 4 t < 13$$
-4*t < 13
Then
$$x < -3.25$$
no execute
the solution of our inequality is:
$$x > -3.25$$
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