Given the inequality:
$$2 x - 6 > 14$$
To solve this inequality, we must first solve the corresponding equation:
$$2 x - 6 = 14$$
Solve:
Given the linear equation:
2*x-6 = 14
Move free summands (without x)
from left part to right part, we given:
$$2 x = 20$$
Divide both parts of the equation by 2
x = 20 / (2)
$$x_{1} = 10$$
$$x_{1} = 10$$
This roots
$$x_{1} = 10$$
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
$$x_{0} = x_{1} - \frac{1}{10}$$
=
$$- \frac{1}{10} + 10$$
=
$$\frac{99}{10}$$
substitute to the expression
$$2 x - 6 > 14$$
$$-6 + \frac{2 \cdot 99}{10} > 14$$
69/5 > 14
Then
$$x < 10$$
no execute
the solution of our inequality is:
$$x > 10$$
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